Clovis and Solutrean: Is There a Common Thread? by James M. Chandler Stone Age Columbus BBC TV programme summary "America's Stone Age Explorers" transcript of 2004 NOVA program on PBS Images of Solutrean artifacts Radical theory of first Americans places Stone Age Europeans in Delmarva 20,000 years ago Washington Post article from 28 February 2012 Picture gallery of the Paleolithic (reconstructional palaeoethnology), Libor Balák at the Czech Academy of Sciences, the Institute of Archaeology in Brno, The Center for Paleolithic and Paleoethnological Research