Lukavsky, Jaromir, and Vladislav Cepák. “Cryoseston in Stara Planina (Balkan) Mountains, Bulgaria”. Acta Botanica Croatica 69, no. 2 (October 22, 2010). Accessed November 23, 2024. https://ojs3.abc.botanic.hr/index.php/abc/article/view/300.