%0 Journal Article %A A. S. Galiullin %T Construction of a force field along a given family of trajectories %J Differencialʹnye uravneniâ %D 1981 %P 1487-1489 %V 17 %N 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1981_17_8_a14/ %G ru %F DE_1981_17_8_a14