As noted in the famous "Janitor" memo, wherein IBM CEO T. J. Watson Jr asked "why we have lost our industry leadership" to "34 people, including the janitor.""Watson Jr. memo about CDC 6600". August 28, 1963.
doi.org
Rymaszewski, E. J.; et al. (1981). "Semiconductor Logic Technology in IBM". IBM Journal of Research and Development. 25 (5): 607–608. doi:10.1147/rd.255.0603. ISSN0018-8646.
"Automatic programming and compilers II: The COLASL automatic coding system". ACM '62: Proceedings of the 1962 ACM national conference on Digest of technical papers. pp. 44–45. doi:10.1145/800198.806099.
Rymaszewski, E. J.; et al. (1981). "Semiconductor Logic Technology in IBM". IBM Journal of Research and Development. 25 (5): 607–608. doi:10.1147/rd.255.0603. ISSN0018-8646.