@article{1255632321, author = {Wilf, Herbert S.}, title = {The radius of univalence of certain entire functions}, journal = {Illinois J. Math.}, volume = {6}, number = {1}, year = {1962}, pages = { 242-244}, language = {en}, url = {http://dml.mathdoc.fr/item/1255632321} }
Wilf, Herbert S. The radius of univalence of certain entire functions. Illinois J. Math., Tome 6 (1962) no. 1, pp. 242-244. http://gdmltest.u-ga.fr/item/1255632321/