Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1981_29_3_a10, author = {V. G. Doronin and A. A. Ligun}, title = {Best one-sided approximation of certain classes of functions}, journal = {Matemati\v{c}eskie zametki}, pages = {431--454}, publisher = {mathdoc}, volume = {29}, number = {3}, year = {1981}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1981_29_3_a10/} }
V. G. Doronin; A. A. Ligun. Best one-sided approximation of certain classes of functions. Matematičeskie zametki, Tome 29 (1981) no. 3, pp. 431-454. http://geodesic.mathdoc.fr/item/MZM_1981_29_3_a10/