TY - JOUR AU - P. K. Pavlakos AU - I. G. Stratis TI - Some Remarks on the Periodicity of Solutions for Retarded and Partial Functional Differential Equations JO - Mathematica balkanica PY - 1992 SP - 263 VL - 6 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MABA_1992_6_3_a9/ ID - MABA_1992_6_3_a9 ER -