Janiga, Martin. “Cottus Poecilopus Heckel, 1836, in the River Javorinka, the Tatra Mountains, Slovakia”. Oecologia Montana 27, no. 2 (December 31, 2018): 21-26. Accessed December 9, 2019. http://om.vuvb.uniza.sk/index.php/OM/article/view/315.