@article{TMF_1980_42_1_a4,
     author = {Yu. M. Shirokov},
     title = {Strongly singular potentials in~three-dimensional quantum mechanics},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {45--49},
     year = {1980},
     volume = {42},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1980_42_1_a4/}
}