GIER-A Danish Computer of Medium Size. - Christian Gram; Ole Hestvik; Henning Isaksson; P. T. Jacobsen; Jørn Jensen; Peter Naur; Bent Scharøe Petersen; B. Svejgaard (IEEE Trans. Electron. Comput., 1963)

Correctness in the Small. - Peter Haastrup; Christian Gram (VDM Europe, 1990)

The Work of IFIP Working Group 2.7. - Christian Gram (ACM SIGCHI Bull., 1994)

History of the Nordic Computer Industry. - Christian Gram; Tero Laaksonen; Tomas Ohlin; Harold W. Lawson; Rolf Skår; Ole Stangegaard (History of Nordic Computing, 2003)

University Education on Computers - Summary of a Panel Discussion. - Reino Kurki-Suonio; Oddur Benediktsson; Janis A. Bubenko Jr.; Ingemar Dahlstrand; Christian Gram; John Impagliazzo (History of Nordic Computing, 2007)

Dansk Datamatik Center. - Dines Bjørner; Christian Gram; Ole N. Oest; Leif Rystrøm (History of Nordic Computing, 2010)