Dolenec, T.; Buser, S.; Dolenec, M. The Permian-Triassic Boundary in the Karavanke Mountains (Slovenia): Stable Isotope Variations in the Boundary Carbonate Rocks of the Košutnik Creek and Brsnina Section . geologija 1998, 41 (1), 17-27. https://doi.org/10.5474/geologija.1998.001.