Ratyńska, Halina, Barbara Waldon, and Adam Boratyński. 2006. “Xerothermic and Anthropophytic Species Populations in the Grassland Communities of ‘Skarpy Ślesińskie’ Nature Reserve and Its Surroundings”. Biodiversity: Research and Conservation, no. 3-4 (December):381-85. https://doi.org/10.14746/biorc.2006.3-4.41.