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SELECTED PUBLICATIONS
 A.N. Kocharian, C. Yang and Y.L. Chiang  "Exact and selfconsistent results in
onedimensional repulsive Hubbard model", International Journal of Modern Physics B, 17, 57495772, 2003.
 A.N. Kocharian, C. Yang, and Y.L. Chiang  "Perturbation theory about selfconsistent field solution in onedimensional Hubbard model
", International Journal of Modern Physics B 17, pp. 33633366, 2003.
 C. Yang, A.N. Kocharian and Y.L. Chiang  "Thermodynamic properties of onedimensional Hubbard Model at finite temperature
", International Journal of Modern Physics B 17, 33543358, 2003.
 A.N. Kocharian, C. Yang and Y.L. Chiang  "Superconductivity, magnetism and mapping between the attractive and repulsive Hubbard models
", Journal Physics Society of Japan 71, 223224, 2002.
 C. Yang, A.N. Kocharian and Y.L. Chiang  "Phase diagram and magnetic correlations in onedimensional Hubbard model with magnetic field", Journal Physics Society of Japan 71, 193195, 2002.
 A.N. Kocharian, C. Yang and Y.L. Chiang  "Phase diagram and BCSBose condensation crossover in 1D and 2D Hubbard models", Physica C 364365, pp 131133, 2001.
 C. Yang, A.N. Kocharian and Y.L. Chiang  "Induced magnetization and superconnductivity in presence of external magnetic fied", Physica C 364365, pp 155157, 2001.
 A.N. Kocharian, C. Yang and Y.L. Chiang  "Pairing, crossover and inhomogeneous superconductivity in attractive Hubbard model", International Journal of Modern Physics B 14, pp. 35143519, 2001.
 A.N. Kocharian, N.K. Kioussis and S. Park,  "Magnetic crossover in onedimensional Hubbard model in the presence of magnetic field", Journal of Physics: Condensed Matter13, pp. 67596772, 2001.
 C. Yang, A.N. Kocharian and Y.L. Chiang  "Phase transitions and exact groundstate properties of the onedimensional Hubbard model in a magnetic field", Journal of Physics: Condensed Matter 12, pp. 74437454, 2000.
 A.N. Kocharian, C. Yang and Y.L. Chiang  "The phase diagram and inhomogeneous superconductivity in the onedimensional attractive Hubbard model",
Physica C 341348, pp. 253254, 2000.
 G.W. Fernando, R.E. Watson, M. Weinert, A.N. Kocharian, A. Ratnaweera and K. Tennakone  "Magnetic moment of iron in metallic environments", Physical Review B 61, pp. 375381, 2000.
 C. Yang, Kocharian and Y.L. Chiang  "Exact magnetic ground state properties of
the onedimensional Hubbard model", Physica C 341348, pp. 245246, 2000.
 A.N. Kocharian, C. Yang and Y.L. Chiang  "Exact magnetic phase diagram of the onedimensional Hubbard model", International Journal of Modern Physics B 2931, pp. 35383545, 1999.
 C. Yang, A.N. Kocharian and Y.L. Chiang  "Exact groundstate properties of onedimensional Hubbard model in the presence of magnetic field", Inter. J. Mod. Phys. B 2931, pp. 35733577, 1999.
 A.K. Jermakian, A.N. Kocharian and A.S. Saakian  "MottHubbard crossover in twodimensional clusters threaded by a magnetic field", Physica B 281282, pp. 821822, 2000.
 A.N. Kocharian, C. Yang, Y.L. Chiang and N. Kioussis  "Crossover in attractive Hubbard model for general electron concentrations", Physica B 259261, pp. 739741 1999.
 A.N. Kocharian, C. Yang and Y.L. Chiang  "Selfconsistent and exact studies of pairing correlations and crossover in attractive onedimensional Hubbard model", Physical Review B 59, pp. 74587472, 1999.
 C. Papatriantafillou, N. Kioussis, S. Park and A.N. Kocharian  "The onedimensional periodic Anderson model: a mean field study", Physica B 259261, pp. 208209, 1999.
 A.N. Kocharian and A. Saakian  "Electron state confinement in a Hubbard chain", Phys. Solid State 40, pp. 701703, 1998.
 A.N. Kocharian and A. Saakian  "Twoparticle correlations in 1dlattice systems with intrasite interactions", Physics Solid State 40, pp. 336340, 1998.
 A.N. Kocharian, A.K. Jermakian and A.S. Saakian  "Finitesize clusters in discrete Hubbard model with transverse and longitudinal magnetic fields", Physica B 259261, pp. 736738, 1999.
 N.K. Kioussis, A.N. Kocharian and S. Park  " Onedimensional Hubbard model in the presence of magnetic field", Journal of Magnetism and Magnetic Materials, 177181, pp. 575576, 1998.
 J. Szeftel, H. Moudden and A.N. Kocharian  "On the physical significance of the highdimensionalBetheansatz", Journal of Magnetism and Magnetic Materials, 187, pp. 261267, 1998.
 G.W. Fernando, A.N. Kocharian, R.E. Watson, M. Weinert and A. Ratnaweera  ", Stoner criterion of ferromagnetism and moment saturation in the Hubbard model with applied magnetic field", Physica B 230232, pp. 509512, 1997.
 A.N. Kocharian, C. Yang and Y.L. Chiang,  "The superconductivity of two holes near halffilling in attractive twocomponent Hubbard model", Physica B 230232, pp. 918921, 1997.
 A.N.Kocharian  "The behavior of the critical magnetic field and correlation functions in finitesize Hubbardlike models", International Journal of Modern Physics B, Vol. 11, Nos. 1 & 2 (1997) 147152
 A.N. Kocharian, A.K. Jermakian and C.Yang  "Offdiagonal superconducting correlations and Nagaoka instability in repulsive Hubbard model", Physica B 230232, pp. 466468, 1997.
 A.N.Kocharian  "The behavior of the critical magnetic field and correlation functions in finitesize Hubbardlike models. Book: In Series on Advances in Statistical Mechanics", ed. C. King, F.Y. Wu, World Scientific Publishing Company, v 13, pp. 147152, 1997.
 A.N. Kocharian, A.K. Jermakian and A.S. Sogomonian  "MottHubbard transition in finite Hubbard lattices: exact results", Physica B 230232, pp.10311033, 1997.
 A.N. Kocharian and G.R. Reich  "Orbital magnetism and valence instabilities in narrow bands", IEEE Transactions on Magnetics, v 33, No. 1, pp. 682685, 1997.
 A.N. Kocharian and J.H. Sebold  "Finitesize effects and unsaturated ferromagnetism of twocomponent Hubbard rings in a strong magnetic field: exact results", Physical Review B 53, pp. 1280412812, 1996.
 A.N. Kocharian, A.K. Jermakian and A.S. Sogomonian  "MottHubbard transition in finite 1d and 2d lattices", Workshop on Strong Electron Correlations, Preprint IC/96/277, ICTP, MiramareTrieste, Italy, (1996).
 A.N. Kocharian and C Yang  "Superconductivity in twoband model with strong attraction", Applied Superconductivity, v 2, pp. 661665, 1995.
 A.N. Kocharian and G.R. Reich  "High temperature superconductivity in the generalized negative U Hubbard model"Journal of Materilas Chemistry and Physics B 2, pp. 134137, 1995.
 A.N. Kocharian and G.R. Reich  "Phase transitions in generalized Hubbard model"Physica B 206207, pp. 719722, 1995.
 A.N. Kocharian and G.R. Reich  "Twoparticle correlations in finite lowdimensional Hubbardlike lattices"Physica B 206207, pp. 732735, 1995.
 A.N. Kocharian and A.S. Sogomonian  "Correlation decay in low dimensional spin glasses", Journal of Applied Physics, 76, pp. 61866188, 1994.
 A.N. Kocharian and G.R. Reich  "Mixed valence in generalized Hubbard model", Journal of Applied Physics, 76, pp. 61276129, 1994.
 A.N. Kocharian and A.S. Saakian  "Valence fluctuation and phase transitions in system of strongly interacting fermions", Physica B 199200, pp. 582584, 1994.
 A.N. Kocharian and A.G. Sogomonian  "Phase diagram and correlation decay of bipolarons in 2d lattices", Physica B 194196, pp. 445447, 1994.
 A.N. Kocharian and P.S. Ovnanian  "High temperature superconductivity and mixed valence state of bipolarons", In Phonon Scattering in Condensed Matter VII, Springer Series in SolidState Sciences No. 112, v 8, pp. 202203, eds. M. Meisner and R. O. Pohl, Springer, Verlag, Heidelberg, 1993.
 A.N. Kocharian and P.S. Ovnanian  "Electron and hole superconductivity in model of local pairs near half filling", Physica C 185189, pp. 17371738, 1991.
 A.N. Kocharian  "Cooperative effects in the system of strongly correlated electrons", Abstracts of the highest academic degree (Doctor of Science, D.Sc.) thesis, Institute of Atomic Energy, Yerevan, Armenia, 24 p., 1991.
 A.N. Kocharian and P.S. Ovnanian  "Charge fluctuations in nonperturbative Hubbard model", Sov. Journal of Low Temperature Physics, v 17, pp. 551552, 1991.
 A.N. Kocharian and P. S. Ovnanian  "Electron correlations in the effective Hubbard model", Zeitschrift fur Physik B: Condensed Matter, v 83, pp. 6164, (1991).
 V.E. Adamian, A.A. Artsruni, A. Benayssa, A. N. Kocharian, M. A. Melikian, A.G. Toneyan  "Magnetic properties of model multicomponent compounds with CsCl structure", Physica Status Solidi, B 156, pp. 633640, 1989.
 A.N. Kocharian  "Xray absorption spectra theory in variable valence compounds", Journal of Magnetism and Magnetic Materials, v 6364, pp. 499501, 1987.
 A.N. Kocharian  "Doublet structure of Xray spectra and final state interactions in variable valence compounds", Sov. Phys. JETP Lett., v 45, pp. 102104, 1987.
 A.N. Kocharian  "Change of valence in rare earth semiconductors in the multiimpurity Anderson model", Sov. Phys. Solid State, v 28, pp. 610, 1986.
 A.N. Kocharian  "Interaction of localized electrons in crystals", J. Low. Temp. Phys. v 9, pp. 399341, 1983.
 A.N. Kocharian and N.Sh. Izmailian  "Phase transitions in the twolevel model: exact solution", Solid State Communications, v 44, pp. 805808, 1982.
 A.N. Kocharian, P.S. Ovnanian and D. I. Khomskii  "Variable flevel width and valence change transitions in the cerium compounds", JETP Lett., v 34, No. 1, pp. 2325, 1981.
 A.N. Kocharian  "States with intermediate valence in rare earth metals and semiconductors", (Review article) National Journal of Chemical Society, v 6, pp. 3958, 1981.
 N.Sh. Izmailian, A.N. Kocharian, P.S. Ovnanian and D. I. Khomskii  "Mixed valence in periodic Anderson lattices", Sov. Phys. Solid State, v 23, pp 17361739, 1981.
 A.N. Kocharian and P.S.Ovnanian  "Electron structure and the mechanism of indirect exchange in doped semiconductors", Sov. Phys. Solid State, v 21, pp. 997999, 1979.
 A.N. Kocharian and P. S. Ovnanian  "Exchange interaction mechanism in magnetic superconductors", Sov. Phys. JETP v 47, pp. 326330, 1978.
 A.N. Kocharian  "Effect of doping on mechanism of exchange interactionin magnetic semiconductors", Sov. Phys. Lebedev Inst. Rep. No. 2, pp. 16, 1977.
 A.N. Kocharian  "Electron structure and properties of substances with localized and collectivized electrons". Abstracts of the Philosophy Doctorate Thesis, Lebedev Physics Institute. Moscow, Russia, 20 p., 1977.
 D.I. Khomskii and A.N. Kocharian  "Virtual levels, mixed valence phase and transitions in rareearth compounds", Solid State Communications, v 18, pp. 985989 1976.
 A.N. Kocharian and D.I. Khomskii  "On electron phase transitions with valence change in rareearth compounds", Sov. Phys. JETP, v 44, pp. 404409, 1976.
 A.N. Kocharian, P.S. Ovnanian and D.I. Khomskii  "Exchange interactions in magnetic semiconductors", Sov. Phys. Solid State, v 17, 290, 1975.
 A.N. Kocharian and D.I. Khomskii  "Effect of hybridization on electron transitions in rareearth compounds", Sov. Phys. Lebedev Inst. Rep., No. 8, pp. 17, 1974.
 A.N. Kocharian and D.I. Khomskii  "The influence of the unfilled narrow band on the superconductivity of transition and rareearth metals", Sov. Phys. Solid State, v 14, No. 8, pp. 20932095, 1973.
SEMINARS, COLLOQUIA, INVITED TALKS AT CONFERENCES
 A.N. Kocharian, C.Yang and Y. L. Chiang  "Exact and selfconsistent perturbation calculations of thermodynamic properties in correlated electrons in halfmetallic materials", Ninth International Conference on Composites Engineering, ICCE/9, Conference, San Diego, California (2002).
 A.N. Kocharian  "Exact and SelfConsistent Studies of the Ground State Properties for 1d and 2d Hubbard Models in Entire Parameter Space
", Gordon Research Conference, Colby College Waterville, Maine (2002).
 A.N. Kocharian  "Inhomogeneous Superconductivity and BCSBose Condensation Crossover in Attractive OneDimensional Hubbard Model", Gordon Research Conference, Colby College Waterville, Maine (2002).
 A.N. Kocharian, C. Yang and Y. L. Chiang  "Superconductivity and magnetism and mapping between the attractive and repulsive Hubbard models", International Conference on Strongly Correlated Electrons with orbital degrees of freedom, (ORBITAL2001), Japan, Osaka (2001).
 A.N. Kocharian, C. Yang and Y. L. Chiang  "Phase diagram and magnetic correlations in one dimensional repulsive Hubbard model with magnetic field", International Conference on Strongly Correlated Electrons with orbital degrees of freedom, (ORBITAL2001), Japan, Osaka (2001).
 A.N. Kocharian  "Phase diagram and BCSBose condensation of local pairs in 1d and 2d Hubbard model", International Conference on New Theories, Discoveries and Applications of Superconductivity and Related Materials, (New3SC3), Honolulu, Hawaii (2001).
 A.N. Kocharian  "Inhomogeneous Superconductivity in 1d Attractive Hubbard Model", International Conference on Materials and Mechanisms of Superconductivity High Temperature Superconductors VI,Houston, Texas (2000).
 A.N. Kocharian, C Yang and Y. L. Chiang  "Phase Diagram, Crossover and Inhomogeneous Superconductivity in the Attractive Hubbard Model", The 6th International Conference on Materials and Mechanisms of Superconductivity And High Temperature Superconductors, Houston, Texas (2000).<\li>
 A.N. Kocharian, C Yang and Y. L. Chiang  "Bose condensation and electron pairing in 1d Hubbard model", II Conference on New Theories, Discoveries and Applications of Superconductivity and Related Materials, Las Vegas, Nevada (1999).
 A.N. Kocharian, C Yang and Y. L. Chiang  "Phase transitions and exact ground state", International Conference on Strongly Correlated Electron Systems, Nagano, Japan (1999)
 A.N. Kocharian, C Yang and Y. L. Chiang  "inhomogeneous superconductivity in attractive Hubbard model", The 6th International Conference on Materials and Mechanisms of Superconductivity And High Temperature Superconductors, Houston, Texas (2000).
 A.N. Kocharian, C Yang and Y. L. Chiang  "inhomogeneous superconductivity in attractive Hubbard model", The 3rd International Conference on Stripes and High Tc Superconductivity (Stripes 2000), Rome, Italy (2000).
 C. Papatriantafillou, N. Kioussis, S. Park and A. N. Kocharian  "Phase Diagram of the Symmetric and Asymmetric onedimensional Anderson model.", International Conference on Strongly Correlated Electron Systems, Paris, France (1998).
 C. Papatriantafillou, N. Kioussis, S. Park and A.N. Kocharian  "Phase diagram of the symmetric and asymmetric onedimensional Anderson model", Bulletin of APS, 43, No. 1, K31 7, p 402, Los Angeles, California (1998).
 N. Kioussis, S. Park and A.N. Kocharian  "Groundstate properties of the Hubbard model in the presence of magnetic field", APS March Meeting, Bulletin of APS, 42, No. 1, p 814, Kanzas City, Missouri (1997).
 A.N. Kocharian and C. Yang  "Superconductivity in two component fermion system with attraction", APS March Meeting, Bulletin of APS, 42, No. 1, p 428, Kanzas City, Missouri (1997).
 A.N. Kocharian, A.K. Jermakian and A.S. Sogomonian  "MottHubbard transition in finite 1d and 2d lattices", Workshop on Strong Electron Correlations, Preprint IC/96/277, ICTP, MiramareTrieste, Italy (1996).
 G.W. Fernando, A.N. Kocharian, R.E. Watson and M. Weinert  "Stoner criterion of ferromagnetism and moment saturation in the Hubbard model with applied magnetic field", International Conference on Strongly Correlated Electron Systems, Zurich, Switzerland (1996).
 A.N. Kocharian, A.K. Jermakian and C. Yang  "Offdiagonal superconducting correlations and Nagaoka instability in the repulsive Hubbard model", International Conference on Strongly Correlated Electron Systems, Zurich, Switzerland, (1996).
 A.N. Kocharian, A.K. Jermakian and C. Yang  "MottHubbard transition in finite Hubbard lattices: exact results", IInternational Conference on Strongly Correlated Electron Systems, Zurich, Switzerland (1996).
 A.N. Kocharian "The behavior of the critical field and correlation functions in finitesize Hubbardlike models", International Conference on Exactly Soluble Models in Statistical Mechanics: Historical Perspectives and Current Status, Northeastern University, Boston, Massachusetts (1996).
 A.N. Kocharian  "The quantum instabilities and electron correlations", Proceedings of International conference on Quantum Mechanics from Microcosm to Macrocosm, University of Albany, New York (1996).
 A.N. Kocharian, A.K. Jermakian and C. Yang  "Unsaturated ferromagnetism of two component Hubbard rings in a strong magnetic field, "APS March Meeting, Bulletin of APS, v 41, p 588, St. Louis, Michigan (1996).
 A.N. Kocharian, A.K. Jermakian and C. Yang  "The superconductivity of two holes near halffilling in attractive Hubbard model"International Conference on Strongly Correlated Electron Systems, Zurich, Switzerland (1996).
 A.N. Kocharian and A.S. Sogomonian  "The study of overturned spins in twodimensional Heisenberg model", APS March Meeting, Bulletin of APS, v 41, p. 279, St. Louis, Michigan (1996).
 A.N. Kocharian and J.H. Sebold  "Unsaturated ferromagnetism in Hubbardlike finite chains at strong magnetic field", APS March Meeting, Bulletin of APS, v 41, p 695, St. Louis, Michigan (1996).
 A.N. Kocharian and G.R. Reich  "The bipolaron superconductivity in twoband model with strong attraction", International Workshop on High Temperature Superconductivity, Miami, Florida (1995).
 A.N. Kochariana and G.R. Reich  "Orbital magnetism and mixed valence state", APS March Meeting, Bulletin of APS, v 40, p 316, San Jose, California (1995).
 C. Yang and A.N. Kocharian  "High temperature superconductivity in the generalized negative U Hubbard model", Report on 1994 International Conference on Electronic Materials (IUMRSICEM'94), Hsinchu, Taiwan (1994).
 A.N. Kocharian and G.R. Reich  "The phase diagram in a degenerate generalized Hubbard model", Report on the 71 Statistical Mechanics Meeting. The title is published in the journal of Statistical Physics, ed. by Joel L. Lebowitz, Rutgers, New Jersey (1994).
 A.N. Kocharian and G.R. Reich  "The phase diagram in a degenerate generalized Hubbard model", Report on the 71 Statistical Mechanics Meeting. The title is published in the journal of Statistical Physics, ed. by Joel L. Lebowitz, Rutgers, New Jersey (1994).
 A.N. Kocharian and G.R. Reich  "Twoparticle correlation in finite lowdimensional lattices", Report on International Conference on Strongly Correlated Electrons, Amsterdam, The Netherlands (1994).
 A.N. Kocharian and G.R. Reich  "Phase transition in generalized Hubbard model", Report on "International Conference on Strongly Correlated Electrons", Amsterdam, The Netherlands (1994).
 A.N. Kocharian and A.G. Sogomonian  "Correlation decay in lowdimensional spinglasses", Report on 6th Joint MMMIntermag Conference, Albuquerque, New Mexico (1994).
 A.N. Kocharian and G.R. Reich  "Mixed valence in a generalized Hubbard model", Report on 6th Joint MMMIntermag Conference, Albuquerque, New Mexico (1994).
 A.N. Kocharian and A.G. Sogomonian "Phase diagram and correlation function decay of bipolarons in 2d lattices" The 20th International Conference on Low Temperature Physics, Conference Handbook II, pp. L97, Eugene, Oregon (1993).
 A.N. Kocharian and A.S. Saakian  "Valence fluctuations and phase transitions in the system of strongly interacting fermions" International Conference on Strongly Correlated Systems, Program book and abstracts, p. KT16, San Diego, California (1993).
 A.N. Kocharian and A.G. Sogomonian  "Superconducting correlation function decay in 2d degenerate Hubbard model", In Proceedings of 1993 International Workshop on Superconductivity, Hoakodate, Japan (1993).
 A.N. Kocharian and P.S. Ovnanian  "Charge fluctuations and superconductivity in the Hubbard model with attraction", In Progress of High Temperature Superconductivity, v 32, pp. 384389, ed. A. A. Aronov, A. I. Larkin, V. S. Lutovinov, World Scientific, Singapore, NewJersey, London, Hong Kong (1992).
 A.N. Kocharian and A.S. Saakian  "Twoparticle correlations in 1d finite lattice Hubbard model", In Proceedings of 27th Conference on Low Temperature Physics, part 2, p. 157 Kazan, Russia (1992).
 A.N. Kocharian and A.G. Sogomonian  "High Tc superconductivity and valence fluctuations in generalized negative U Hubbard model", In Proceedings of 1992 Annual Material Research Society Meeting, p. 272, Boston, Massachusetts (1992).
 A.N. Kocharian  "High Tc superconductivity and mixed valence state of bipolarons", Proceedings of 4th International Conference on "Phonon Physics" (Phonons1992), HiTc 16, Ithaca, New York (1992).
 A.N. Kocharian and P.S. Ovnanian  "The phase diagram in strongly correlated negative U Hubbard model", In Proceedings of the 9th International Seminar on "Phase Transitions and Critical Phenomena", p. 5, Kudowa, Poland (1992).
 A.N. Kocharian and P.S. Ovnanian  "Charge fluctuations in the nonperturbative Hubbard model", Report on the International Workshop on "Strongly Correlated Electron States" in Condensed Media (SCESM91), Crimea, Ukraine, 1991.
 A.N. Kocharian and P.S. Ovnanian  "Electron and hole superconductivity in the model of local pairs near halffilling", Proceedings of the International Conference on "Materials and Mechanisms of Superconductivity", p. 14 (PO30), Kanazava, Japan (1991).
 A.N. Kocharian and P.S. Ovnanian  "Charge fluctuations and superconductivity in the nonperturbative effective Hubbard model", Materials of the International Conference on "HTSC and Localization Phenomena", p. T 17, Moscow, Russia (1991).
 A.N. Kocharian and P.S. Ovnanian  "Charge fluctuations and superconductivity of highly correlated electrons", Proceedings of the 25th AMPERE Congress, pp. 295296, Stuttgart, Germany (1990).
 A.N. Kocharian and P.S. Ovnanian  "Strongly correlated electrons and superconductivity of diholons and didoublons", The Second SovietGerman Joint Seminar on Cooperative Phenomena in ManyBody Systems in Physics, Moscow, Russia (1989).
 A.N. Kocharian and P.S. Ovnanian  "Superexchange mechanism and superconductivity in the Hubbard model with attraction", Proceedings of the 19th Annual International Symposium on Electron Structure of Solids, p. 6, Holzhau, Germany (1989).
 A.N. Kocharian and P.S. Ovnanian  "Phonon induced superexchange and superconductivity of diholons and didoublons in HTSC", Proceedings of the Third International Conference on Phonon Physics, p. 81, Heidelberg, Germany (1989).
 A.N. Kocharian  "Magnetic susceptibility of variable valence rareearth compounds for the Nfold degenerate Anderson model", In Proceedings of the 24th Congress on "Magnetic Resonance and Related Phenomena"(AMPERE  88), pp. 977982, Poznan, Poland (1988).
 V.E. Adamian, A.A. Artsruni, A. Benayssa, A.N. Kocharian and M.A. Melikian  "The influence of certain parameters on the magnetic properties of multicomponent solid solutions with a CsCl structure", Report in Proceedings of the 24th International Congress on "Magnetic Resonance and Related Phenomena", (AMPERE  88), pp. 983989, Poznan, Poland (1988).
 A.N. Kocharian  "The effect of electronphonon interaction on the electron spectrum of the weakly disordered semiconductors", Proceedings of the International Conference on Phonon Physics ("Phonon85"), pp. 217220, Budapest, Hungary, (1985).
, Lett. to the Soviet Journal of Experimental and Theoretical
Physics, v.13, pp.688691, 1971.
 A.N. Kocharian, A.K. Jermakian and A.S. Saakian  "Finitesize clusters in discrete Hubbard model with transverse and longitudinal magnetic fields", Physica B 259261, pp. 736738, 1999.
