@article{ZVMMF_1976_16_2_a26,
     author = {N. S. Grigor'ev},
     title = {Estimation of {Green's} function of the {Helmholtz} equation in the shadow region in the three-dimensional case},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {525--526},
     publisher = {mathdoc},
     volume = {16},
     number = {2},
     year = {1976},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1976_16_2_a26/}
}