Flora, mycota and vegetation of Kupena Reserve (Rodopi Mountains, Bulgaria). Год. СУ, БФ, Книга 2 - Ботаника [Internet]. 2016 Jan. 1 [cited 2025 Dec. 14];100:100-15. Available from: https://annual.uni-sofia.bg/index.php/biofac-botany/article/view/1621