Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1962_144_3_a1, author = {G. A. Bessmertnykh and A. Yu. Levin}, title = {Some bounds for differentiable functions of one variable}, journal = {Doklady Akademii Nauk}, pages = {471--474}, publisher = {mathdoc}, volume = {144}, number = {3}, year = {1962}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1962_144_3_a1/} }
G. A. Bessmertnykh; A. Yu. Levin. Some bounds for differentiable functions of one variable. Doklady Akademii Nauk, Tome 144 (1962) no. 3, pp. 471-474. http://geodesic.mathdoc.fr/item/DAN_1962_144_3_a1/