1. A. A. Ageev, A. E. Baburin, and E. Kh. Gimadi, Diskretn. Anal. Issled. Oper., Ser. 1, 13(2), 11 (2006); English transl.: J. Appl. Indust. Math. 1 (2), 142 (2007).
2. A. A. Ageev and A. V. Pyatkin, Diskretn. Anal. Issled. Oper. 16(4), 3 (2009); English transl.: in Approximation and Online Algorithms (Springer-Verlag, Berlin, 2008), Ser. Lecture Notes in Comp. Sci., Vol. 4927, pp. 103–115.
3. A. E. Baburin, E. Kh. Gimadi, and N. M. Korkishko, Diskretn. Anal. Issled. Oper., Ser. 2, 11(1), 11 (2004); English transl. in Operations Research Proceedings (Springer-Verlag, Berlin, 2003), pp. 316–323.
4. A. E. Baburin and E. Kh. Gimadi, Diskretn. Anal. Issled. Oper., Ser. 1, 13(3), 3 (2006); English transl.: J. Appl. Indust. Math. 1 (4), 418 (2007).
5. E. Kh. Gimadi, Yu. V. Glazkov, and A. N. Glebov, Diskretn. Anal. Issled. Oper., Ser. 2, 14(2), 41 (2007); English transl.: J. Appl. Indust. Math. 3 (1), 46 (2009).