1. Gamble, C. Paleolithic Societies of Europe 268–426 (Cambridge Univ. Press, Cambridge, 1999).
2. Stringer, C. B. & Mackie, R. African Exodus: the Origin of Modern Humanity 84–111 (Cape, London, 1996).
3. Hoffecker, J. F., Powers, W. R. & Goebel, T. The colonization of the Beringia and the peopling of the New World. Science 259, 46–53 (1993).
4. Mochanov, Yu. A. Initial Settling of the Territory of North-Eastern Asia (Nauka, Novosibirsk, 1977) (in Russian).
5. Allsworth-Jones, P. The Szeletian 83–198 (Clarendon, Oxford, 1986).