Levallois and non-Levallois blade production at Shuidonggou in Ningxia, North China Boëda, E. ; Hou, Y. M. ; Forestier, H. ; Sarel, J. ; Wang, H. M. Abstract Publication: Quaternary International Pub Date: May 2013 DOI: 10.1016/j.quaint.2012.07.020 Bibcode: 2013QuInt.295..191B