@article{02107695, title = {Asymptotic behavior of the approximation numbers of the Hardy-type operator from }, journal = {JIPAM. Journal of Inequalities in Pure \& Applied Mathematics [electronic only]}, volume = {5}, year = {2004}, zbl = {1058.47017}, language = {en}, url = {http://dml.mathdoc.fr/item/02107695} }
Lang, J.; Mendez, O.; Nekvinda, A. Asymptotic behavior of the approximation numbers of the Hardy-type operator from . JIPAM. Journal of Inequalities in Pure & Applied Mathematics [electronic only], Tome 5 (2004) . http://gdmltest.u-ga.fr/item/02107695/