@article{GDZPPN00205731X, title = {An Entire Function of Restricted Growth.}, journal = {Commentarii mathematici Helvetici}, volume = {33}, year = {1959}, pages = {322-324}, zbl = {0117.03905}, url = {http://dml.mathdoc.fr/item/GDZPPN00205731X} }
Piranian, George. An Entire Function of Restricted Growth.. Commentarii mathematici Helvetici, Tome 33 (1959) pp. 322-324. http://gdmltest.u-ga.fr/item/GDZPPN00205731X/