@article{Simons, author = {Simons, Elwyn L.}, title = {The Earliest Apes}, series = {Scientific American (July 1964), pp. 28-33.}, journal = {Scientific American (July 1964), pp. 28-33.}, language = {en} } @article{Simons, author = {Simons, Elwyn L.}, title = {The Early Relatives of Man}, series = {Scientific American (Dec. 1967), pp. 50-62.}, journal = {Scientific American (Dec. 1967), pp. 50-62.}, language = {en} }