From the Atlantic to beyond the Bug River finding and defining the Federmesser-GruppenAzilian : proceedings of session A5b (Commission "The Final Palaeolithic of Northern Eurasia") of the XVIIth UISPP Congress, Burgos, September 2014 - Grimm, Sonja B.; Weber, Mara-Julia; Mevel, Ludovic; Sobkowiak-Tabaka, Iwona (RGZM-Tagungen)