@article{1077374947,
author = {Newman, D. J. and Shapiro, Harold S.},
title = {Some theorems on \v Ceby\v sev approximation},
journal = {Duke Math. J.},
volume = {30},
number = {1},
year = {1963},
pages = { 673-681},
language = {en},
url = {http://dml.mathdoc.fr/item/1077374947}
}
Newman, D. J.; Shapiro, Harold S. Some theorems on Čebyšev approximation. Duke Math. J., Tome 30 (1963) no. 1, pp. 673-681. http://gdmltest.u-ga.fr/item/1077374947/