1. Non-linear programming;Kuhn,1951
2. Effective sequences and their Properties;Podinovskii,1973
3. Konvexe N-Stufen Max-Min-Optimierung;Behringer;Z. Oper. Res.,1970
4. Introduction to the theory of operations research;Germeier,1971
5. Mathematical methods in the theory of games, programming, and economics;Karlin,1959