Jo Ann Fellin
:An historical and comparative study concerned with the unsolvability of the word problem for groupsUniversity of Illinois at Urbana-Champaign,Ph.D.1970
Weldon Earl Bliss
:The work of Emil L. Post on combinatorial systems: A basis for modern recursive function theoryUniversity of Illinois at Urbana-Champaign,Ph.D.1972
Everett Douglas Gibson
:Graphical representations of groups: A historical development with implications to pedagogyUniversity of Illinois at Urbana-Champaign,Ph.D.1974
John Allen Koch
:Computation of four color irreducibilityUniversity of Illinois at Urbana-Champaign,Ph.D.1976
Zhu-Xin Hu
:On Tait’s color-tiling problemUniversity of Illinois at Urbana-Champaign,Ph.D.1996