@article{DAN_1986_289_4_a16,
     author = {V. M. Babich},
     title = {Asymptotic solution of a problem on the point source of diffusion},
     journal = {Doklady Akademii Nauk},
     pages = {836--839},
     publisher = {mathdoc},
     volume = {289},
     number = {4},
     year = {1986},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1986_289_4_a16/}
}