Czubak, Wawrzyniec, and Bartłomiej Bajan. “The Impact of RDP 2007-2013 On Integration of Polish Agricultural Producers Based on the Action "Agricultural Producer Groups"”. Journal of Agribusiness and Rural Development 41, no. 3 (December 31, 2016): 283-292. Accessed May 20, 2026. http://www1.up.poznan.pl/jard/index.php/jard/article/view/181.