@article{03983522, title = {A simultaneous solution to two problems of derivatives.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {9}, year = {1986}, pages = {517-519}, doi = {10.1155/S0161171286000637}, zbl = {0608.26002}, language = {en}, url = {http://dml.mathdoc.fr/item/03983522} }
Cater, F.S. A simultaneous solution to two problems of derivatives.. International Journal of Mathematics and Mathematical Sciences, Tome 9 (1986) pp. 517-519. doi : 10.1155/S0161171286000637. http://gdmltest.u-ga.fr/item/03983522/