GRAČAN, Romana, LAZAR, Bojan in LACKOVIĆ, Gordana, 2013, Follicle development in immature spiny dogfish (Squalus acanthias). [na spletu]. 2013. Vol. 4, no. 1. [Dostopano 5 april 2025]. Pridobljeno s: http://www.omicsonline.org/2157-7099/2157-7099-4-169.digital/2157-7099-4-169.html