Teszbir, Hanna, and Zbigniew Gołaś. “Regional Differences in Activity of Agricultural Producers in Applying for Direct Payments”. Journal of Agribusiness and Rural Development 34, no. 4 (December 31, 2014): 181-189. Accessed March 29, 2024. http://www1.up.poznan.pl/jard/index.php/jard/article/view/493.