Shyndanovina, I., and O. Lukash. “New European Locality of Three Rare Taxa (Zygnematophyceae, Streptophyta): Cosmarium Pseudoprotuberans Var. Sulcatum (Nordstedt) Coesel, Gonatozygon Aculeatum W.N.Hastings and Pleurotaenium Simplicissimum Grönblad”. Ecological Questions, vol. 34, no. 4, July 2023, pp. 1-13, doi:10.12775/EQ.2023.048.