van De Vijver, B., & Wetzel, C. E. (2022).

A new Fragilaria Lyngbye species (Fragilariaceae, Bacillariophyta) from a historic Grunow sample from the Attersee, Austria

. Phytotaxa, 561(2), 210–214. https://doi.org/10.11646/phytotaxa.561.2.9