1. Sh. Adamia, N. Salukadze, M. Nazarov, G. Gongadze, O. Gavtadze, E. Kilasonia, and A. Asanidze, “Geological Events at the Cretaceous-Paleogen Boundary in Georgia (Caucasus),” Geologica Carpatica 23(3), 35–43 (1993).
2. B. V. Burov, D. K. Nurgaliev, and P. G. Yasonov, Paleomagnetic Analysis (Izd. KGU, Kazan, 1986), pp. 1–167 [in Russian].
3. A. F. Grachev, O. A. Korchagin, H. A. Kollmann, D. M. Pechersky, and V. A. Tselmovich, “A New Look at the Nature of the Transitional Layer at the K/T Boundary near Gams, Eastern Alps, Austria, and the Problem of the Mass Extinction of the Biota,” Russ. J. Earth Sci. 7 (ES6001. doi:10.2205/2005ES000189) (2005).
4. E. G. Gurvich, Metalliferous Sediments of the World Ocean (Nauchnyi mir, Moscow 1998), pp. 1–337 [in Russian].
5. R. Lahodynsky, “Lithostratigraphy and Sedimentology across the Cretaceous/Tertiary Boundary in the Flyschgosau (Eastern Alps, Austria),” Riv. Espanola de Paleontologia, No. Extraordinario, 73–82 (1988).