C. A. R. Hoare, 1973-1975, 1980

For reference to his own and to CMU's research interests, Habermann collected scientific papers by contemporaries in the computer science field. Some were written by his former graduate students, such as David Garlan, Dewayne Perry, and Gregory Andrews. Habermann's Dutch mentor Edsger Dijkstra and sometime research collaborator Per Brinch Hansen are also represented. The Colleagues series--named after the secretarial titling--comprises one box of material. Habermann also ordered catalogs and syllabi from other university Computer Science programs to be stored under this rubric. The series is arranged alphabetically by author or type of material.