%0 Journal Article %A Tsvetkov, Dimitar %T Mean-Periodic Solutions of Retarded Functional Differential Equations %J Serdica Mathematical Journal %D 1995 %P 201-218 %V 21 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/SMJ2_1995_21_3_a2/ %G en %F SMJ2_1995_21_3_a2