Ryu, Jeong-Hee and Judi Bartfeld. 2012. “Household food insecurity during childhood and subsequent health status among children: The Early Childhood Longitudinal Study-Kindergarten Cohort.” American Journal of Public Health 102(11): e50-5.
Bartfeld, Judi and Jeong-Hee Ryu. 2011. “School breakfast program and breakfast skipping: Evidence from Wisconsin.” Social Service Review 85(4): 619-634.
Bartfeld, Judi and Jeong-Hee Ryu and Lingling Wang. 2010. “Local characteristics are linked to food insecurity among households with elementary school children.” Journal of Hunger & Environmental Nutrition 5(4): 471-483.
Bartfeld, Judi, Hong-Min Ahn, and Jeong-Hee Ryu. 2012. Economic Well-Being of Divorced Mothers with Varying Child Placement Arrangements in Wisconsin: Contributions of Child Support and Other Income Sources. Madison, WI. Report to the Wisconsin Department of Children and Families, Institute for Research on Poverty, University of Wisconsin-Madison.
Ryu, Jeong-Hee and Judi Bartfeld. 2011. Long Term Food Security Patterns and Children’s Cognitive and Health Outcomes. Washington, D.C.: Economic Research Service, U.S. Department of Agriculture.
Bartfeld, Judi, Myoung Kim, Jeong-Hee Ryu, and Hong-Min Ahn. 2009. School Breakfast Program: Participation and Impacts. Washington, D.C.: Economic Research Service, U.S. Department of Agriculture. Contractor and Cooperator Report CCR-54. July.
Ed Saunders, Miriam J. Landsman, Nancy Graf, Patricia Gilbaugh, and Jeong-Hee Ryu. 2004. Evaluation of Abstinence Only Education in Iowa 2003-2004. Iowa City, Iowa: University of Iowa. Submitted to the Iowa Department of Public Health.