Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1986_39_3_a8, author = {V. I. Kolyada}, title = {Relationships between the best approximations in different metrics}, journal = {Matemati\v{c}eskie zametki}, pages = {383--387}, publisher = {mathdoc}, volume = {39}, number = {3}, year = {1986}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1986_39_3_a8/} }
V. I. Kolyada. Relationships between the best approximations in different metrics. Matematičeskie zametki, Tome 39 (1986) no. 3, pp. 383-387. http://geodesic.mathdoc.fr/item/MZM_1986_39_3_a8/