	Authors	Year	Title
	Korn & Sudar	2016	The Late Devonian and Early Carboniferous ammonoids (Cephalopoda) from Milivojevića Kamenjar, Družetić (NW Serbia) and their stratigraphy Bulletin of Geosciences, volume 91, issue 1; pages: 187 - 220
	Stevanovic & Kullmann	1962	Namirski kat Druzetica i njegova gonijatitska fauna. Namurian bei Druzetic im Westlichen Serbien und seine Goniatitenfauna -.I.Geologischer Teil. - II. Paläontologischer Teil. Bulletin Muséum d'Histoire Naturelle Belgrade, 1962, Série A (16-17): 47-112, 13 fig., pl.1-4; Beograd.