Peitgen, H., Walther, H., Peitgen, H. O., & Walther, H. O. (1979). Functional differential equations and approximation of fixed points: Proceedings, Bonn, July. Berlin: Springer-Verlag.
Παραπομπή Chicago StylePeitgen, Heinz-Otto, Hans-Otto Walther, Heinz Otto Peitgen, and Hans Otto Walther. Functional Differential Equations and Approximation of Fixed Points: Proceedings, Bonn, July. Berlin: Springer-Verlag, 1979.
Παραπομπή MLAPeitgen, Heinz-Otto, Hans-Otto Walther, Heinz Otto Peitgen, and Hans Otto Walther. Functional Differential Equations and Approximation of Fixed Points: Proceedings, Bonn, July. Berlin: Springer-Verlag, 1979.
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