%0 Journal Article %A V. G. Cherednichenko %T Determination of the density of a body from the given potential of an elliptic equation %J Differencialʹnye uravneniâ %D 1979 %P 376-378 %V 15 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1979_15_2_a28/ %G ru %F DE_1979_15_2_a28