Creating e-learning course on biodiversity in the European project Key to Nature. Годишник на Софийския Университет „Св. Климент Охридски“, Биологически факултет, Книга 2 – Ботаника, [S. l.], v. 99, p. 115–121, 2016. DOI: 10.60066/GSU.BIOFAC.Bot.99.115-121. Disponível em: https://annual.uni-sofia.bg/index.php/biofac-botany/article/view/1625. Acesso em: 14 dec. 2025.