@article{03868010, title = {Supremum norm differentiability.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {6}, year = {1983}, pages = {705-713}, doi = {10.1155/S0161171283000605}, zbl = {0545.46028}, language = {en}, url = {http://dml.mathdoc.fr/item/03868010} }
Leonard, I.E.; Taylor, K.F. Supremum norm differentiability.. International Journal of Mathematics and Mathematical Sciences, Tome 6 (1983) pp. 705-713. doi : 10.1155/S0161171283000605. http://gdmltest.u-ga.fr/item/03868010/