Mirkin, B.M., L.H. Naumova, and S.M. Yamalov. 2011. “Significant Contribution of Czech Geobotanists to the Syntaxonomic Study of the Vegetation of the Czech Republic”. CHORNOMORSKI BOTANICAL JOURNAL 6 (4): 544-48. https://www.cbj.kspu.edu/index.php/cbj/article/view/543.