@article{DE_1998_34_5_a2,
     author = {L. V. Kritskov},
     title = {On spectral expansions corresponding to the multidimensional {Schr\"odinger} operator with a summable {potential.~I}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {609--618},
     publisher = {mathdoc},
     volume = {34},
     number = {5},
     year = {1998},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1998_34_5_a2/}
}