@book{131410, author = {Watanabe, Hitoshi and Kuchikura, Yukio}, title = {Control precision in the flaking of Levallois points from the Amud Cave}, year = {1973}, url = {http://www.persee.fr/web/revues/home/prescript/article/paleo_0153-9345_1973_num_1_1_902} }