@article{TMF_1991_88_2_a1,
     author = {N. V. Goncharov},
     title = {Reduction technique with allowance for bound states},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {192--213},
     publisher = {mathdoc},
     volume = {88},
     number = {2},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1991_88_2_a1/}
}