@article{DAN_1984_276_2_a21,
     author = {V. D. Koshmanenko},
     title = {Wave operators for semigroups and transition functions},
     journal = {Doklady Akademii Nauk},
     pages = {347--350},
     publisher = {mathdoc},
     volume = {276},
     number = {2},
     year = {1984},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1984_276_2_a21/}
}