@article{TMF_1985_64_3_a6,
     author = {V. M. Muzafarov},
     title = {Off-shell $t$-matrix of a two-particle system},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {411--415},
     publisher = {mathdoc},
     volume = {64},
     number = {3},
     year = {1985},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1985_64_3_a6/}
}