Buczkó, Krisztina, Agata Z. Wojtal, and Enikő K. Magyari. 2013. “Lectotypification, Emended Description and Distribution of Planothidium distinctum (Achnanthidiaceae, Bacillariophyceae)”. Phytotaxa 117 (1). Auckland, New Zealand:1–10. https://doi.org/10.11646/phytotaxa.117.1.1.