Olszańska, Anna, Anna Sylwia Kowalska, Klaudia Paskudzka, and Joanna Szymańska. “Regional Differentiation of Changes in Pig Livestock Procurement in Poland in 1999–2022 in the Context of Economic and Environmental Conditions”. Economics and Environment 97, no. 2 (May 15, 2026): 1143. Accessed June 7, 2026. https://ekonomiaisrodowisko.pl/journal/article/view/1143.