@article{GDZPPN002316692, title = {Some Convexity and Convolution Theorems for Analytic Functions.}, journal = {Mathematische Annalen}, volume = {237}, year = {1978}, pages = {217-228}, zbl = {0438.30011}, url = {http://dml.mathdoc.fr/item/GDZPPN002316692} }
Ruscheweyh, Stephan. Some Convexity and Convolution Theorems for Analytic Functions.. Mathematische Annalen, Tome 237 (1978) pp. 217-228. http://gdmltest.u-ga.fr/item/GDZPPN002316692/