@article{DAN_1961_137_5_a1,
     author = {F. A. Berezin and L. D. Faddeev},
     title = {Remark on the {Schr\"odinger} equation with singular potential},
     journal = {Doklady Akademii Nauk},
     pages = {1011--1014},
     publisher = {mathdoc},
     volume = {137},
     number = {5},
     year = {1961},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1961_137_5_a1/}
}