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@article{GMJ_2001__8_2_49769, author = {Ulyanov, V.V. and Fujikoshi, Y.}, title = {On accuracy of improved -approximations.}, journal = {Georgian Mathematical Journal}, pages = {401--414}, publisher = {mathdoc}, volume = {8}, number = {2}, year = {2001}, zbl = {1005.62014}, language = {en}, url = {http://geodesic.mathdoc.fr/item/GMJ_2001__8_2_49769/} }
Ulyanov, V.V.; Fujikoshi, Y. On accuracy of improved -approximations.. Georgian Mathematical Journal, Tome 8 (2001) no. 2, pp. 401-414. http://geodesic.mathdoc.fr/item/GMJ_2001__8_2_49769/