@article{DAN_1994_334_3_a3,
     author = {L. L. Gromova},
     title = {Estimation of the seventh coefficient in the class of odd},
     journal = {Doklady Akademii Nauk},
     pages = {270--271},
     year = {1994},
     volume = {334},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1994_334_3_a3/}
}