Why Levallois? A Morphometric Comparison of Experimental `Preferential' Levallois Flakes versus Debitage Flakes Eren, Metin I. ; Lycett, Stephen J. Abstract Publication: PLoS ONE Pub Date: January 2012 DOI: 10.1371/journal.pone.0029273 Bibcode: 2012PLoSO...729273E