%0 Journal Article %A I. V. Amirkhanov %A G. V. Grusha %A R. M. Mir-Kassimov %T Three-dimensional formulation of the relativistic two-body problem in terms of rapidities %J Teoretičeskaâ i matematičeskaâ fizika %D 1977 %P 333-345 %V 30 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_1977_30_3_a4/ %G ru %F TMF_1977_30_3_a4