2023. Species composition of cyanoprokaryota in the summer phytoplankton of 55 selected lakes and reservoirs, sampled in Bulgaria in the years 2018, 2019, 2021 and 2023. Годишник на Софийския Университет „Св. Климент Охридски“, Биологически факултет, Книга 2 – Ботаника. 107, (Jan. 2023), 57–113. DOI:https://doi.org/10.60066/GSU.BIOFAC.Bot.107.57-113.