Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MM2_1985__53_155097, author = {Sakari Toppila}, title = {On the {Spherical} {Derivative} of an {Entire} {Function.}}, journal = {Manuscripta mathematica}, pages = {225--234}, publisher = {mathdoc}, volume = {53}, year = {1985}, zbl = {0595.30040}, url = {http://geodesic.mathdoc.fr/item/MM2_1985__53_155097/} }
Sakari Toppila. On the Spherical Derivative of an Entire Function.. Manuscripta mathematica, Tome 53 (1985), pp. 225-234. http://geodesic.mathdoc.fr/item/MM2_1985__53_155097/