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UNIX v6源代码 这几乎是最经典的unix版本 unix操作系统设计和莱昂氏unix源代码分析都是用的该版

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References
.IP 1
Aho, A.V. and Johnson, S.C., ``LR Parsing'', Computing Surveys,
Vol 6, No 2, June 1974, pp. 99-124.
.IP 2
Aho, A.V., Johnson, S.C., and Ullman, J.D., ``Deterministic Parsing of Ambiguous Grammars'',
Proceedings of the A.C.M. Symposium on Principles of
Programming Languages, October 1973, pp. 1-21; to appear in CACM.
.IP 3
Aho, A.V. and Ullman, J.D., Theory of Parsing, Translation, and Compiling.
Volume 1 (1972) and Volume 2 (1973), Prentice-Hall, Englewood Cliffs, N.J.
.IP 4
Kernighan, B. W., Ratfor, a Rational Fortran
.IP 5
Ryder, B. B., ``The PFORT Verifier,'' Software\-Practice and Experience, Vol 4 (1974), pp 359-377.
.IP 6
McIlroy, M. D., A Manual for the TMG Compiler-writing Language
.IP 7
Ritchie, D. M., C Reference Manual
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