@article{DAN_1979_249_1_a20,
     author = {V. M. Adamyan and N. S. Pushek},
     title = {The {Schr\"odinger} operator with a singular attractive potential},
     journal = {Doklady Akademii Nauk},
     pages = {81--85},
     publisher = {mathdoc},
     volume = {249},
     number = {1},
     year = {1979},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1979_249_1_a20/}
}