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UHER, Bohuslav. Morphological characterization of three subaerial Calothrix species (Nostocales, Cyanobacteria). Fottea. Olomouc: Czech Phycological Society, 2007, roč. 7, č. 1, s. 33-38. ISSN 1213-3434.Podrobněji: https://is.muni.cz/publication/720266/cs