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References
- Estrin, Gerald (May 1960). "Organization of computer systems: The fixed plus variable structure computer" (PDF). Papers presented at the May 3-5, 1960, western joint IRE-AIEE-ACM computer conference on - IRE-AIEE-ACM '60 (Western). San Francisco. pp. 33–40. doi:10.1145/1460361.1460365. ISBN 978-1-4503-7869-7. S2CID 16384320.
{{cite book}}: CS1 maint: location missing publisher (link) - Muller, Jean-Michel (2005). Elementary Functions: Algorithms and Implementation (2nd ed.). Birkhäuser. p. 58. ISBN 0-8176-4372-9.