@article{DAN_1988_299_1_a5,
     author = {Vu Kim Tuan},
     title = {New classes of index integral transformations},
     journal = {Doklady Akademii Nauk},
     pages = {30--35},
     year = {1988},
     volume = {299},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1988_299_1_a5/}
}