1. Mathematical theory of optimal processes;Pontryagin,1976
2. Optimizations of systems with distributed parameters;Sirazetdinov,1977
3. Optimal control of systems descirbed by partial differential equations;Lions,1971
4. An algorithm of the method of successive approximations for optimal control Problems;Krylov;Zh. vychisl. Mat. mat. Fiz.,1972
5. Variational inequalities in optimization problems;Serovaiskii,1981