%0 Journal Article %A K. I. Ivanov %A A. T. Marinov %T Variable phase method for scattering on nonlocal potentials that admit separation of the variables in spheroidal coordinates %J Teoretičeskaâ i matematičeskaâ fizika %D 1979 %P 370-379 %V 38 %N 3 %U http://geodesic.mathdoc.fr/item/TMF_1979_38_3_a8/ %G ru %F TMF_1979_38_3_a8