Backus–Naur form (English Wikipedia)

Saul Rosen (Jan 1967). Programming Systems and Languages. McGraw Hill Computer Science Series. New York: McGraw Hill. ISBN 978-0070537088.
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Naur, Peter (1961). "A COURSE OF ALGOL 60 PROGRAMMING with special reference to the DASK ALGOL system" (PDF). Copenhagen: Regnecentralen. Retrieved 26 March 2015.
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Ingerman, Peter Zilahy (March 1967). ""Pāṇini-Backus Form" Suggested". Communications of the ACM. 10 (3): 137. doi:10.1145/363162.363165. S2CID 52817672.
Post, Emil L. (1943). "Formal Reductions of the General Combinatorial Decision Problem". American Journal of Mathematics. 65 (2): 197–215. doi:10.2307/2371804.
Chomsky, Noam (1956). "Three models for the description of language". IRE Transactions on Information Theory. 2 (3): 113–24. doi:10.1109/TIT.1956.1056813. S2CID 19519474.
Knuth, Donald E. (1964). "Backus Normal Form vs. Backus Naur Form". Communications of the ACM. 7 (12): 735–736. doi:10.1145/355588.365140. S2CID 47537431.

foldoc.org (Global: low place; English: low place)

This article is based on material taken from Backus-Naur+Form at the Free On-line Dictionary of Computing prior to 1 November 2008 and incorporated under the "relicensing" terms of the GFDL, version 1.3 or later.

ietf.org (Global: 214^th place; English: 176^th place)

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Ingerman, Peter Zilahy (March 1967). ""Pāṇini-Backus Form" Suggested". Communications of the ACM. 10 (3): 137. doi:10.1145/363162.363165. S2CID 52817672.
Chomsky, Noam (1956). "Three models for the description of language". IRE Transactions on Information Theory. 2 (3): 113–24. doi:10.1109/TIT.1956.1056813. S2CID 19519474.
Knuth, Donald E. (1964). "Backus Normal Form vs. Backus Naur Form". Communications of the ACM. 7 (12): 735–736. doi:10.1145/355588.365140. S2CID 47537431.

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Backus, J. W. (1959). "The syntax and semantics of the proposed international algebraic language of the Zurich ACM-GAMM Conference". Proceedings of the International Conference on Information Processing. UNESCO. pp. 125–132.

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Backus–Naur form (English Wikipedia)

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