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2. V. N. Sachkov, Introduction to Combinatorial Methods of Discrete Mathematics (MTsNMO, Moscow, 2004) [in Russian].
3. D. Stinson, Combinatorial Designs: Constructions and Analysis (Springer, Berlin, 2003).
4. C. Colbourn and J. Dinitz, The CRC Handbook of Combinatorial Designs, 2nd ed. (CRC, Boca Raton, 2007).
5. M. F. Karavai, P. P. Parkhomenko, and V. S. Podlazov, “Combinatorial methods for constructing bipartite uniform minimal quasicomplete graphs (symmetrical block designs),” Autom. Remote Control 70, 312 (2009).