"The History of PCS". PCS Systemtechnik GmbH. Archived from the original on 2016-08-17. Retrieved 2016-08-17. https://www.pcs.com/en/company/history/the-history-of-pcs/
"Prof. Dr.-Ing. Georg Färber - Wissenschaftliche Arbeit". emeriti-of-excellence (in German). Technische Universität München (TUM). Archived from the original on 2016-08-16. Retrieved 2016-08-16. https://www.emeriti-of-excellence.tum.de/tumemeritiofexcellencea-z/georg-faerber/
"The History of PCS". PCS Systemtechnik GmbH. Archived from the original on 2016-08-17. Retrieved 2016-08-17. https://www.pcs.com/en/company/history/the-history-of-pcs/
"The History of PCS". PCS Systemtechnik GmbH. Archived from the original on 2016-08-17. Retrieved 2016-08-17. https://www.pcs.com/en/company/history/the-history-of-pcs/
PI (1983-01-14). "Source-Lizenz trägt Früchte: Munix ist Unix aus München" (in German). computerwoche. Archived from the original on 2016-08-17. Retrieved 2016-08-17. http://www.computerwoche.de/a/source-lizenz-traegt-fruechte-munix-ist-unix-aus-muenchen,1177403
Brownbridge, David R.; Marshall, Lindsay F.; Randell, Brian (1982). "The Newcastle Connection" (PDF). Software: Practice and Experience. 12: 1147–1162. doi:10.1002/spe.4380121206. Archived from the original (PDF) on 2016-08-16. Retrieved 2016-08-16. /wiki/Brian_Randell
Callaghan, Brent (2000). NFS Illustrated. Addison Wesley. ISBN 0-201-32570-5. 0-201-32570-5
"The History of PCS". PCS Systemtechnik GmbH. Archived from the original on 2016-08-17. Retrieved 2016-08-17. https://www.pcs.com/en/company/history/the-history-of-pcs/
"A Directory of Companies and Organizations Providing CAD/CAM Products and Services in Canada" (PDF). Government of Canada Publications. p. 6. Retrieved 2025-02-15. Avec Cadmus, a subsidiary of Cadmus Computer Systems Inc. of Lowell Massachusetts. President: John Leng
https://publications.gc.ca/collections/collection_2024/isde-ised/Id54-5-1986-eng.pdf
PI (1986-08-29). "Cadmus jetzt mit Kulisch-Arithmetik - Uni Karlsruhe gibt Pascal-Compiler nach München" [Cadmus now comes with Kulisch arithmetic - University Karlsruhe delivers Pascal compiler to Munich]. Computerwoche (in German). Munich / Karlsruhe, Germany: IDG Business Media GmbH. Archived from the original on 2016-05-30. Retrieved 2016-05-30. http://www.computerwoche.de/a/uni-karlsruhe-gibt-pascal-compiler-nach-muenchen-cadmus-jetzt-mit-kulisch-arithmetik,1165749
PI (1986-08-29). "Cadmus jetzt mit Kulisch-Arithmetik - Uni Karlsruhe gibt Pascal-Compiler nach München" [Cadmus now comes with Kulisch arithmetic - University Karlsruhe delivers Pascal compiler to Munich]. Computerwoche (in German). Munich / Karlsruhe, Germany: IDG Business Media GmbH. Archived from the original on 2016-05-30. Retrieved 2016-05-30. http://www.computerwoche.de/a/uni-karlsruhe-gibt-pascal-compiler-nach-muenchen-cadmus-jetzt-mit-kulisch-arithmetik,1165749