Commodore 900 (English Wikipedia)

LeBold, Diane (September 1985). "Commodore Announces Unix®-Compatible Business System". Commodore Microcomputers. Vol. 6, no. 37. Contemporary Marketing, Inc. p. 10. ISBN 0-88731-047-8. ISSN 0744-8724. Retrieved 2020-10-16.{{cite magazine}}: CS1 maint: periodical has ISBN (link)
Frank Hughes (1985-03-01). Commodore c900 Hardware Spec.
"Commodore to Use Z8000 Family in Its Micros". Computerworld. 24 January 1983. p. 77. Retrieved 10 March 2023.
Libes, Sol (March 1983). "16-Bit Version of 6502 Announced". Computers & Electronics. p. 32. Retrieved 10 March 2023.
"Hanover 1984". Commodore User. May 1984. pp. 4–5. Retrieved 28 February 2023.
Libes, Sol (March 1983). "Rumors & Gossip". Computers & Electronics. p. 32. Retrieved 10 March 2023.
"Commodore high-performance micros out". Computerworld. International Data Group. 6 May 1985. p. 57.
Rochkind, Marc J. (November 1985). "Pick, Coherent and THEOS". Byte. pp. 231–239. Retrieved 28 February 2023. Coherent appears to be nearly a clone of UNIX Version 7, an older release of UNIX that has since been replaced by System III and System V. I write "appears to be" because the Coherent manual doesn't say it is based on UNIX.
Onyx C8002 Computer System. Onyx Systems Incorporated. p. 8.
C5002A, C8002A Series Product Description. Onyx Systems Inc. February 1983. Retrieved 3 March 2023.
"Commodore at the Hanover Fair". Commodore International. Vol. 3, no. 2. Fall 1985. p. 10. Retrieved 25 February 2024.

books.google.com (Global: 3^rd place; English: 3^rd place)

"Secret Weapons of Commodore: The CBM 900". www.floodgap.com. Retrieved 2022-12-14.

LeBold, Diane (September 1985). "Commodore Announces Unix®-Compatible Business System". Commodore Microcomputers. Vol. 6, no. 37. Contemporary Marketing, Inc. p. 10. ISBN 0-88731-047-8. ISSN 0744-8724. Retrieved 2020-10-16.{{cite magazine}}: CS1 maint: periodical has ISBN (link)

"Commodore 900 Computer : This is Z Page". www.zimmers.net. Retrieved 2022-12-14.