Radivojević, Miljana; Rehren, Thilo; Pernicka, Ernst; Šljivar, Dušan; Brauns, Michael; Borić, Dušan (2010). "On the origins of extractive metallurgy: New evidence from Europe". Journal of Archaeological Science37 (11): 2775. doi:10.1016/j.jas.2010.06.012.
Photos, E., 'The Question of Meteorictic versus Smelted Nickel-Rich Iron: Archaeological Evidence and Experimental Results' World Archaeology Vol. 20, No. 3, Archaeometallurgy (February 1989), pp. 403–421. Online version accessed on 2010-02-08.