TRUKHCHEV, D.; GEORGIEV, V.; KRASTEV, A.; MAVRODIEVA, R. Features of the Intra-annual Variability of the Hydrochemical and Hydrobiological State of Varna Lakes in the Period 2022–2023. Proceedings of the Bulgarian Academy of Sciences, Sofia, Bulgaria, v. 79, n. 5, p. 603–614, 2026. DOI: 10.7546/CRABS.2026.05.08. Disponível em: https://www.proceedings.bas.bg/index.php/cr/article/view/978. Acesso em: 17 jul. 2026.