CEPAK, Vladislav; LUKAVSKY, Jaromir. Cryoseston of the Pirin Mountains, Bulgaria. Acta Botanica Croatica, [S. l.], v. 72, n. 2, 2013. Disponível em: https://abc.botanic.hr/index.php/abc/article/view/811. Acesso em: 7 jun. 2025.