Diatom diversity of springs and spring-fed streams in Vitosha Nature Park, Bulgaria. Год. СУ, БФ, Книга 2 - Ботаника [Internet]. 2025 Jul. 11 [cited 2026 Jan. 12];99:26-4. Available from: https://annual.uni-sofia.bg/index.php/biofac-botany/article/view/1610