Beniaminov, E. M. The role of symmetry in relational models of data bases and logical structures. (English. Russian original) Zbl 0578.68086 Autom. Doc. Math. Linguist. 18, No. 3, 32-47 (1984); translation from Nauchno-Tekh. Inf., Ser. 2, 1984, No. 5, 17-25 (1984). MSC: 68P20 20B25 68U20 68P05 03G15 03B10 PDFBibTeX XMLCite \textit{E. M. Beniaminov}, Autom. Doc. Math. Linguist. 18, No. 3, 32--47 (1984; Zbl 0578.68086); translation from Nauchno-Tekh. Inf., Ser. 2, 1984, No. 5, 17--25 (1984)
Tucker, Alan Applied combinatorics. 2nd ed. (English) Zbl 0554.05002 New York - Chichester etc.: John Wiley & Sons. XI, 447. p. £40.50 (1984). Reviewer: J.Sedláček MSC: 05-01 05Axx 05Cxx 68-01 68R10 PDFBibTeX XML