@article{TMF_1979_38_3_a8,
     author = {K. I. Ivanov and A. T. Marinov},
     title = {Variable phase method for scattering on nonlocal potentials that admit separation of the variables in spheroidal coordinates},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {370--379},
     publisher = {mathdoc},
     volume = {38},
     number = {3},
     year = {1979},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1979_38_3_a8/}
}