%0 Journal Article %A S. N. Sokolov %T Physical equivalence of the point and instantaneous forms of relativistic dynamics %J Teoretičeskaâ i matematičeskaâ fizika %D 1975 %P 236-241 %V 24 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_1975_24_2_a9/ %G ru %F TMF_1975_24_2_a9