Modern Human Origins Wolpoff, M. H. ; Spuhler, J. N. ; Smith, F. H. ; Radovcic, J. ; Pope, G. ; Frayer, D. W. ; Eckhardt, R. ; Clark, G. Abstract Publication: Science Pub Date: August 1988 DOI: 10.1126/science.3136545 Bibcode: 1988Sci...241..772W