Siciński, Jan, and Jarosław Sieradzki. “The Flora of the Former Łęczyca Iron Ore Dumps”. Biodiversity: Research and Conservation 13 (May 17, 2010): 31–36. Accessed June 30, 2024. https://pressto.amu.edu.pl/index.php/biorc/article/view/v10119-009-0006-2.