1. The multiple-input minimal time regulator problem (general theory);WING;IEEE Trans. Autom. Control,1963
2. The maximum principle of L. S. Pontryagin in optimal-system theory, Part III;ROZONOER;Automation Remote Control,1959
3. Digitized maximum principle;CHANG;Proc. IRE,1960
4. A discrete version of Pontryagin's maximum principle;KATZ;J. Electron. Control,1962
5. Topological aspects of optimal control of dynamical polysystems;HALKIN;Contrib. Differential Equations,1964