@article{DAN_1995_344_5_a1,
     author = {F. O. Porper and S. D. \`Eidel'man},
     title = {Theorems on the asymptotic proximity of fundamental solutions of},
     journal = {Doklady Akademii Nauk},
     pages = {586--589},
     publisher = {mathdoc},
     volume = {344},
     number = {5},
     year = {1995},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1995_344_5_a1/}
}