Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{ARM_1976__12_3_a0, author = {\v{S}merk, Ji\v{r}{\'\i}}, title = {The approximation of functions in the sense of {Tchebychev.} {II}}, journal = {Archivum mathematicum}, pages = {117--141}, publisher = {mathdoc}, volume = {12}, number = {3}, year = {1976}, mrnumber = {0435694}, zbl = {0445.41007}, language = {en}, url = {http://geodesic.mathdoc.fr/item/ARM_1976__12_3_a0/} }
Šmerk, Jiří. The approximation of functions in the sense of Tchebychev. II. Archivum mathematicum, Tome 12 (1976) no. 3, pp. 117-141. http://geodesic.mathdoc.fr/item/ARM_1976__12_3_a0/