Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{ARM_1975__11_1_a2, author = {\v{S}merk, Ji\v{r}{\'\i}}, title = {The approximation of functions in the sense of {Tchebychev.} {I}}, journal = {Archivum mathematicum}, pages = {31--51}, publisher = {mathdoc}, volume = {11}, number = {1}, year = {1975}, mrnumber = {0412696}, zbl = {0352.41035}, language = {en}, url = {http://geodesic.mathdoc.fr/item/ARM_1975__11_1_a2/} }
Šmerk, Jiří. The approximation of functions in the sense of Tchebychev. I. Archivum mathematicum, Tome 11 (1975) no. 1, pp. 31-51. http://geodesic.mathdoc.fr/item/ARM_1975__11_1_a2/