Cornelius Sheldon Roberts: Yielding in plain carbon steels. 1949, OCLC29562403 (Masterarbeit (M.S.), Massachusetts Institute of Technology, Dept. of Metallurgy).
Cornelius Sheldon Roberts: Tempering process in iron-carbon alloys. 1952, OCLC30755442 (Doktorarbeit (Sc. D.), Massachusetts Institute of Technology, Dept. of Metallurgy).