KARAKIEV, T.; TZONEV, R. Saxifrago ferdinandi-coburgi-Seslerietum actarovii – nova asociacija v subalpinskem pasu gorovja Slavjanka (Orvilos) (Bolgarija). Hacquetia, [S. l.], v. 10, n. 1, 2015. DOI: 10.2478/v10028-011-0004-8 . Disponível em: https://ojs.zrc-sazu.si/hacquetia/article/view/2887. Acesso em: 9 dec. 2025.