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Dyfyniad Arddull ChicagoHubbard, John H., and Beverly Henderson West. Differential Equations: A Dynamical Systems Approach. New York: Springer-Verlag, 1995.
Dyfyniad MLAHubbard, John H., and Beverly Henderson West. Differential Equations: A Dynamical Systems Approach. Springer-Verlag, 1995.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.