The Middle to Later Stone Age technological transition in East Africa. New data from Mumba Rockshelter Bed V (Tanzania) and their implications for the origin of modern human behavior - Díez Martín, Fernando; Domínguez-Rodrigo, Manuel; Sánchez-Yustos, Policarpo; Mabulla, Audax Z. P.; Tarriño Vinagre, Antonio; Barba Egido, Rebeca; Prendergast, Mary E.; Luque, Luis de (2009)