@article{DAN_1982_264_2_a17,
     author = {V. M. Vainberg and V. S. Popov},
     title = {On the summation of the perturbation theory series},
     journal = {Doklady Akademii Nauk},
     pages = {330--333},
     publisher = {mathdoc},
     volume = {264},
     number = {2},
     year = {1982},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1982_264_2_a17/}
}