%0 Journal Article %A T. F. Bulatskaya %T Construction of a force function from given properties of the motion %J Differencialʹnye uravneniâ %D 1977 %P 1757-1763 %V 13 %N 10 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1977_13_10_a3/ %G ru %F DE_1977_13_10_a3