@article{GDZPPN002416247, title = {A p-Valent Function with a Non-Normal Derivative.}, journal = {Mathematische Zeitschrift}, volume = {142}, year = {1975}, pages = {147-148}, zbl = {0307.30032}, url = {http://dml.mathdoc.fr/item/GDZPPN002416247} }
Lappan, Peter. A p-Valent Function with a Non-Normal Derivative.. Mathematische Zeitschrift, Tome 142 (1975) pp. 147-148. http://gdmltest.u-ga.fr/item/GDZPPN002416247/