Buczkó, K., Wojtal, A. Z., & Magyari, E. K. (2013). Lectotypification, emended description and distribution of Planothidium distinctum (Achnanthidiaceae, Bacillariophyceae). Phytotaxa, 117(1), 1–10. https://doi.org/10.11646/phytotaxa.117.1.1