Ecological relations and temporal changes in the pelagial of the high mountain lakes in the Rila Mountains (Bulgaria). Journal of Limnology, [S. l.], v. 63, n. 1, p. 90–100, 2004. DOI: 10.4081/jlimnol.2004.90. Disponível em: https://www.jlimnol.it/jlimnol/article/view/jlimnol.2004.90. Acesso em: 1 jul. 2025.