Michalska-Hejduk, Dorota, and Dominik Kopeć. “Ecological and Sociological Spectrum of Ostericum Palustre at New Localities in Central Poland”. Biodiversity: Research and Conservation 17 (February 28, 2011): 63–71. Accessed December 28, 2024. https://pressto.amu.edu.pl/index.php/biorc/article/view/v10119-010-0008-0.