Kupiec, Jerzy mirosław. „Comparison of the Phosphorus Balance Results Based on ?field Surface? and ?farm Gate? Methodology in Large-Scale Farms”. Polish Journal of Agronomy 22, no. 22 (wrzesień 30, 2015): 18–26. Udostępniono luty 24, 2025. https://pja.iung.pl/index.php/archpja/article/view/28.