@article{DE_2001_37_6_a8,
     author = {M. V. Korovina},
     title = {The {Construction} of a {Self-Adjoint} {Extension} of the {Schr\"odinger} {Operator} with {Potential} {Concentrated} 
},
     journal = {Differencialʹnye uravneni\^a},
     pages = {792--795},
     publisher = {mathdoc},
     volume = {37},
     number = {6},
     year = {2001},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2001_37_6_a8/}
}