Robert, A. (1965). [Studies on the morphology and variability of the diatom Pinnularia armenica (Poretzky) n. comb.]. Contributii Botanice, Univ. Babes-Bolyai, 1965: 33-39, pl.
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Robert, A.
1965
[Studies on the morphology and variability of the diatom Pinnularia armenica (Poretzky) n. comb.]