@article{DE_1998_34_6_a9,
     author = {A. A. Dezin},
     title = {On the {Schr\"odinger} and {Klein--Gordon} {equations.~II}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {789--798},
     publisher = {mathdoc},
     volume = {34},
     number = {6},
     year = {1998},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1998_34_6_a9/}
}