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Dyfyniad Arddull ChicagoFunctional Differential Equations and Approximation of Fixed Points. Berlin: Springer-Verlag, 1979.
Dyfyniad MLAFunctional Differential Equations and Approximation of Fixed Points. Springer-Verlag, 1979.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.