The chronological and industrial variability of the middle to Upper Paleolithic transition in eastern Europe - Čabaj, Viktor Petrovič (The chronology of the Aurignacian and of the transitional technocomplexes. Dating, stratigraphies, cultural implications. Proceedings of Symposium 6.1 of the 14th Congress of the UISPP (University of Liège, Belgium, September 2-8, 2001)., 2003)