Wójcik-GrontE., and OllikM. “Spatial Analysis of Agricultural Greenhouse Gas Emission at the Municipality (LAU-2) Level across Poland”. Annals of Warsaw University of Life Sciences – SGGW. Horticulture and Landscape Architecture, no. 39, 1, pp. 71–81, https://ahorticulture.sggw.pl/index.php/hala/article/view/13.