@article{DAN_1993_330_5_a8,
     author = {Kh. B. Allakhverdiev and Yu. D. Pletner},
     title = {The fundamental solution of the two-dimensional operator of},
     journal = {Doklady Akademii Nauk},
     pages = {562--564},
     publisher = {mathdoc},
     volume = {330},
     number = {5},
     year = {1993},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1993_330_5_a8/}
}