%0 Journal Article %A M. Martinovič %T Zeta functions and trace formulas for a boundary value problem for a functional-differential equation %J Differencialʹnye uravneniâ %D 1982 %P 537-540 %V 18 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1982_18_3_a21/ %G ru %F DE_1982_18_3_a21