Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MZ_1967__101_170841, author = {Howard Osborn}, title = {Derivations of {C...} {Functions.}}, journal = {Mathematische Zeitschrift}, pages = {265--268}, publisher = {mathdoc}, volume = {101}, year = {1967}, zbl = {0158.04401}, url = {http://geodesic.mathdoc.fr/item/MZ_1967__101_170841/} }
Howard Osborn. Derivations of C... Functions.. Mathematische Zeitschrift, Tome 101 (1967), pp. 265-268. http://geodesic.mathdoc.fr/item/MZ_1967__101_170841/