%0 Journal Article %A A. G. Lomtatidze %A B. Puzha %A R. Hakl %T On the Periodic Boundary Value Problem for First-Order Functional-Differential Equations %J Differencialʹnye uravneniâ %D 2003 %P 320-327 %V 39 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_2003_39_3_a3/ %G ru %F DE_2003_39_3_a3