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[2] Chomsky N.: Three models for the description of language. I.R.E. Trans. 2 (1956), 11,3-124. Zbl 0156.25401

[3] Čulík K.: On the description of sentence structure (Czech.). Studies in applied linguistics of N. P. Andrejev. Prague 1963, 98-109.

[4] Čulík K.: Applications of graph theory to mathematical logic and linguistics. Theory of graphs and its applications, Publ. House of Czech. Academy of Sciences, Prague 1964, 13-20. MR 0176940

[5] Harris Z.: Co-occurrence and Transformation in Linguistic Structure. Language 33 (1957), 283-340. DOI 10.2307/411155

[6] Čulík K.: Well-translatable grammars and ALGOL-like languages. Formal Language Description Languages for Computer Programming, North-Holland, Amsterdam 1965.

[7] Backus J. W., all.: Report on the algorithmic language ALGOL 60. Num. Math. 2 (1960), 106-136. DOI 10.1007/BF01386216 | MR 0130074 | Zbl 0089.12510

[8] Chomsky N.: The logical basis of linguistic theory. Proc. of the 9th international congress of linguists, Monton, Haag 1964, 914-978.

[9] Čulík K.: Semantics and Translation of Grammars and ALGOL - like Languages. Prague, Cybernetics 1 (1965), 47-49.

[10] Chomsky N.: Chapters 11 - 13 in the Handbook of Mathematical Psychology, II. Wiley, New York 1963.

[11] Chomsky N., Schützenberger M. P.: The algebraic theory of context-free languages. Computer Programming and Formal Systems, North-Holland, Amsterdam 1963. MR 0152391

[12] Bach E.: An introduction to transformational grammars. Holt, Rinehart and Winston, 1964.

[13] Chomsky N.: Aspects of the theory of syntax. The M.I.T. Press, Cambridge 1965.