Ewa Skrzypczak, Karolina Szulc , Monika Demkowicz , Damian Knecht, Anna JankowskaMąkosa , Janusz T. Buczyński and Marek Babicz, “The influence of the different content of protein fractions in sows’ milk in piglet rearing”, African Journal of Pig Farming, vol. 8, no. 1, pp. 1–6, Jul. 2020.