Kim, S. W., M. Grossman, H. H. Stein, and R. A. Easter. 2000. A nonlinear model for mammary gland growth and regression in lactating sows. Growth Dev. Aging 64:71-81. Link to abstract
Kim, S. W., W. L. Hurley, I. K. Han, H. H. Stein, and R. A. Easter. 1999. Effect of nutrient intake on mammary gland growth in lactating sows. J. Anim. Sci. 77:3304-3315. Link to full text (.pdf)