TY - JOUR TI - On the shape of waste flakes as an index of technological change in lithic industries N1 - Electronic journal JF - Journal of Archaeological Science AU - Pitts, M.W. DO - 10.1016/0305-4403(78)90016-X PY - 1978-3 EP - 37 SP - 17 SN - 03054403 IS - 1 VL - 5 ER -