@article{03693863, title = {Approximation on the semi-infinite interval.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {3}, year = {1980}, pages = {793-796}, doi = {10.1155/S0161171280000580}, zbl = {0444.41014}, language = {en}, url = {http://dml.mathdoc.fr/item/03693863} }
Mercer, A.McD. Approximation on the semi-infinite interval.. International Journal of Mathematics and Mathematical Sciences, Tome 3 (1980) pp. 793-796. doi : 10.1155/S0161171280000580. http://gdmltest.u-ga.fr/item/03693863/