Więcław, Helena. “Carex Flava Agg. (section Ceratocystis, Cyperaceae) in Poland: Distribution Maps and Locality Lists”. Biodiversity: Research and Conservation 33 (March 11, 2015): 52–87. Accessed July 18, 2024. https://pressto.amu.edu.pl/index.php/biorc/article/view/biorc-2014-0002.