@article{01533313, title = {On rational approximation in a ball in }, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {23}, year = {2000}, pages = {335-344}, doi = {10.1155/S0161171200003616}, zbl = {0973.32003}, language = {en}, url = {http://dml.mathdoc.fr/item/01533313} }
Darko, P.W.; Einstein-Matthews, S.M.; Lutterodt, C.H. On rational approximation in a ball in . International Journal of Mathematics and Mathematical Sciences, Tome 23 (2000) pp. 335-344. doi : 10.1155/S0161171200003616. http://gdmltest.u-ga.fr/item/01533313/