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Research supported in part under grant no. 73-2492, Applied Mathematics Division, AFOSR, United States Air Force.
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Balakrishnan, A.V. A note on the structure of optimal stochastic controls. Appl Math Optim 1, 87–94 (1974). https://doi.org/10.1007/BF01449025
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DOI: https://doi.org/10.1007/BF01449025