@article{GDZPPN002214377,
title = {Continuity properties of best analytic approximation.},
journal = {Journal f\"ur die reine und angewandte Mathematik},
volume = {485},
year = {1997},
pages = {1-22},
zbl = {0890.47016},
url = {http://dml.mathdoc.fr/item/GDZPPN002214377}
}
Young, N.J.; Peller, V.V. Continuity properties of best analytic approximation.. Journal für die reine und angewandte Mathematik, Tome 485 (1997) pp. 1-22. http://gdmltest.u-ga.fr/item/GDZPPN002214377/