%0 Journal Article %A V. M. Astapenko %T Construction of and connection between the n-periodic Green’s functions for the Laplace and Helmholtz equations %J Doklady Akademii Nauk %D 1972 %P 48-51 %V 205 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1972_205_1_a11/ %G ru %F DAN_1972_205_1_a11