@article{DAN_1983_271_2_a11,
     author = {T. M. Televinova and V. P. Chistyakov},
     title = {Two theorems on implicitly given estimates},
     journal = {Doklady Akademii Nauk},
     pages = {305--306},
     publisher = {mathdoc},
     volume = {271},
     number = {2},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1983_271_2_a11/}
}