Authors: Tchoumatchenco, P Uchman, A

Citation: P. Tchoumatchenco et A. Uchman, The oldest deep-sea Ophiomorpha and Scolicia and associated trace fossils from the Upper Jurassic-Lower Cretaceous deep-water turbidite deposits of SW Bulgaria, PALAEOGEO P, 169(1-2), 2001, pp. 85-99

Authors: Wetzel, A Uchman, A

Citation: A. Wetzel et A. Uchman, Sequential colonization of muddy turbidites in the Eocene Beloveza Formation, Carpathians, Poland, PALAEOGEO P, 168(1-2), 2001, pp. 171-186

Authors: Uchman, A Wetzel, A

Citation: A. Uchman et A. Wetzel, Estrellichnus jacaensis nov igen., nov isp - A large radial trace fossil from Eocene flycsh (Hecho Group, northern Spain), GEOBIOS, 34(3), 2001, pp. 357-361

Authors: Tchoumatchenco, P Uchman, A

Citation: P. Tchoumatchenco et A. Uchman, Lower and Middle Jurassic flysch trace fossils from the eastern Stara Planina Mountains, Bulgaria: A contribution to the evolution of mesozoic ichnodiversity, N J GEO P-A, 213(2), 1999, pp. 169-199

Authors: Uchman, A Wetzel, A

Citation: A. Uchman et A. Wetzel, An aberrant, helicoidal trace fossil Chondrites Sternberg, PALAEOGEO P, 146(1-4), 1999, pp. 165-169