Bell, D. e., & Bell, D. J. (1975). Singular Optimal Control Problems. Academic Press.
Chicago Style aipamenaBell, D.J. ed, and D.J.; Jacobson Bell. Singular Optimal Control Problems. London: Academic Press, 1975.
MLA aipamenaBell, D.J. ed, and D.J.; Jacobson Bell. Singular Optimal Control Problems. Academic Press, 1975.
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