P. . Siemiński, J. . Žukovskis, and . P. . Senkus, “Regional diversification of the effects of support for agricultural producer groups in Poland”, MAJ, vol. 46, no. 119, pp. 35–42, May 2019, Accessed: Jan. 05, 2025. [Online]. Available: https://czasopisma.uws.edu.pl/znadministracja/article/view/340