Wengrat, S.; Morales, E. A.; Wetzel, C. E.; Almeida, P. D.; Ector, L.; Bicudo, D. C.

Taxonomy and Ecology of Fragilaria Billingsii sp. Nov. and Analysis of Type Material of Synedra rumpens Var. fusa (Fragilariaceae, Bacillariophyta) from Brazil

. Phytotaxa 2016, 270, 191–202.