@article{DAN_1993_332_6_a2,
     author = {E. P. Dolzhenko and E. A. Sevast'yanov},
     title = {Sign-sensitive approximations. {A} space of sign-sensitive weights.},
     journal = {Doklady Akademii Nauk},
     pages = {686--689},
     publisher = {mathdoc},
     volume = {332},
     number = {6},
     year = {1993},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1993_332_6_a2/}
}