Levkov, Z., Mitic-Kopanja, D. & Reichardt, E. (2016). The diatom genus Gomphonema from the Republic of Macedonia. Diatoms of Europe vol.8 in H. Lange-Bertalot (Ed.) Diatoms of the European Inland Waters and Comparable Habitats, Koeltz Botanical Books.552 p. 201 plates, 4425 figs.