Friedman, M. D. (1968). Variational methods in optimum control theory. Academic Press.
Čikaški stil citiranjaFriedman, M D. Variational Methods in Optimum Control Theory. New York: Academic Press, 1968.
MLA način citiranjaFriedman, M D. Variational Methods in Optimum Control Theory. Academic Press, 1968.
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