New data of Gentiana lutea ssp. symphyandra (Gentianacea) in Bulgaria. Год. СУ, БФ, Книга 2 - Ботаника [Internet]. 2018 Jan. 1 [cited 2025 Dec. 14];102:74-89. Available from: https://annual.uni-sofia.bg/index.php/biofac-botany/article/view/1597