van De Vijver, B., Tusset, E., Williams, D.M. and Ector, L. 2020.

Analysis of the type specimens of Fragilaria alpestris (Bacillariophyta) with description of two new ‘araphid’ species from the sub-Antarctic and Arctic Region

. Phytotaxa. 471, 1 (Nov. 2020), 1–15. DOI:https://doi.org/10.11646/phytotaxa.471.1.1.