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2. Controlled stochastic processes-discrete parameter;Dynkin;Teor. Veroyatnost.,1965
3. The Cauchy problem for degenerate parabolic equations;Fleming;J. Math. Mech.,1964
4. On the stochastic maximum principle: fixed time of control;Kushner;J. Math. Anal. Appl.,1965
5. Stochastic problems in optimal control;Wonham;RIAS. Tech. Rept. 63-14,1963