Król-Domańska, Katarzyna, and Beata Smolińska. “Advantages of Lignite Addition in Purification Process of Soil Polluted by Heavy Metals”. Biotechnology and Food Science 76, no. 1 (December 31, 2012): 51-58. Accessed March 9, 2025. https://eczasopisma.p.lodz.pl/BFS/article/view/553.