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Delay and Functional Differential Equations and their Applications || OSCILLATIONS OF NONLINEAR FUNCTIONAL DIFFERENTIAL EQUATIONS GENERATED BY RETARDED ACTIONSLadde, Gangaram S. · 1972
Oscillations of certain functional differential equationsS. R. Grace · Czechoslovak Mathematical Journal · 1999
Oscillations of mixed neutral functional differential equationsS.R. Grace · Applied Mathematics and Computation · 1995
Oscillations of nth-order functional differential equationsShigui Ruan · 1991
Oscillations of second order neutral functional differential equationsJurang Yan · Applied Mathematics and Computation · 1997
Oscillations of a first order functional differential equationTomaras, Alexander · Bulletin of the Australian Mathematical Society · 1977
Perturbations Causing Oscillations of Functional-Differential EquationsKartsatos, A. G.; Manougian, M. N. · Proceedings of the American Mathematical Society · 1974