1. Bahn, Paul G. (1997), ‘Membrane and Numb Brain: A Close Look at a Recent Claim for Shamanism in Palaeolithic Art, Review of Les chamanes de la préhistoire: Transe et magie dans les grottes ornées, by J. Clottes and D. Lewis-Williams, 1996, Le Seuil, Paris, 119 pages, 114 illustrations, F 249.00, 187ISBN 2-02-028902-4’, in Rock Art Research, Vol. 14, No. 1, pp. 62-68.