1. Theory of Motion Control;Krasovskii,1968
2. Controllability of linear autonomous systems with positive passive controllers;Brammer;SIAM J. Contr.,1972
3. Controllability of linear autonomous systems with control constraints;Korobov;Diff. Uravn.,1975
4. Controllability and Stability of Systems with Resource Constraints;Formal'skii,1974
5. Theory of Extremal Problems;Ioffe,1974