@article{GDZPPN002347865,
title = {An Extremal Problem Related to Bernstein's Approximation Problem.},
journal = {Mathematica Scandinavica},
volume = {14},
year = {1964},
pages = {131-141},
zbl = {0146.08201},
url = {http://dml.mathdoc.fr/item/GDZPPN002347865}
}
Wahde, Gösta. An Extremal Problem Related to Bernstein's Approximation Problem.. Mathematica Scandinavica, Tome 14 (1964) pp. 131-141. http://gdmltest.u-ga.fr/item/GDZPPN002347865/