@article{DAN_1963_152_3_a0,
     author = {Yu. M. Berezanskii},
     title = {Smoothness of the spectral function of a self-adjoint elliptic differential operator up to the boundary of the domain},
     journal = {Doklady Akademii Nauk},
     pages = {511--514},
     publisher = {mathdoc},
     volume = {152},
     number = {3},
     year = {1963},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1963_152_3_a0/}
}