You have requested access to download the full text of the source (SourceID: 389264):
Liu, Y.; Kociolek, J. P.; Lu, X.; Fan, Y. (2020). Valve ultrastructure of two species of the diatom genus Gomphonema Ehrenberg (Bacillariophyta) from Yunnan Province, China. Fottea. 20(1): 25-35.