1. C. H. Papadimitriou and K. Steiglitz, Combinatorial Optimization: Algorithms and Complexity, Prentice-Hall, Englewood Cliffs (1982).
2. L. Lovasz, An Algorithmic Theory of Numbers, Graphs and Convexity, SIAM, Philadelphia (1986).
3. G. D. James, The Representation Theory of the Symmetric Group, Springer-Verlag, Berlin (1978).
4. V. V. Emelichev, M. M. Kovalev, and M. K. Kravtsov, Polytopes, Graphs, and Optimization, Cambridge Univ. Press (1984).
5. M. B. Gromova, The Analysis of Operations and Statistical Modeling, Leningrad State Univ. (1974), pp. 3?15.