%0 Journal Article %A Z. M. Narkun %T Formulas for mutual re-expansion of fundamental solutions of the Laplace equation in polar and elliptic coordinates %J Differencialʹnye uravneniâ %D 1983 %P 654-660 %V 19 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1983_19_4_a13/ %G ru %F DE_1983_19_4_a13