Algal diversity on the granite monument in front of the faculty of biology of Sofia university. Годишник на Софийския Университет „Св. Климент Охридски“, Биологически факултет, Книга 2 – Ботаника, [S. l.], v. 107, p. 114–123, 2023. DOI: 10.60066/GSU.BIOFAC.Bot.107.114-123. Disponível em: https://annual.uni-sofia.bg/index.php/biofac-botany/article/view/1560. Acesso em: 15 dec. 2025.