Kiss, K., R. Klee, L. Ector, and E. Acs. “Centric Diatoms of Large Rivers and Tributaries in Hungary: Morphology and Biogeographic Distribution”. Acta Botanica Croatica, vol. 71, no. 2, Oct. 2012, https://www.abc.botanic.hr/index.php/abc/article/view/540.