Dobek, Tomasz K, and Paweł Kołosowski. “Comparison of Economic Efficiency of Rapeseed Production in Farms With Varied Fertilization Variants”. Agricultural Engineering 20, no. 2 (August 2, 2016): 63-70. Accessed November 21, 2024. https://agriceng.ptir.org/index.php/AgricEng/article/view/127.