Levkov, Z., D. Vidaković, A. Cvetkoska, D. Mitić-Kopanja, S. Krstić, B. Van de Vijver, and P. Hamilton. “Observations of the Genus Muelleria (Bacillariophyceae) from the Republic of North Macedonia”. Plant Ecology and Evolution, Vol. 152, no. 2, July 2019, pp. 293-12, doi:10.5091/plecevo.2019.1611.