@article{MZM_1994_55_6_a11,
     author = {N. A. Shananin},
     title = {On singularities of solutions of the {Schr\"odinger} equation for a~free particle},
     journal = {Matemati\v{c}eskie zametki},
     pages = {116--123},
     publisher = {mathdoc},
     volume = {55},
     number = {6},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1994_55_6_a11/}
}