Djerić, N., N. Gerzina, and S. M. Schmid. “AGE OF THE JURASSIC RADIOLARIAN CHERT FORMATION FROM THE ZLATAR MOUNTAIN (SW SERBIA)”. Ofioliti, vol. 32, no. 2, July 2007, pp. 101-8, doi:10.4454/ofioliti.v32i2.350.