@article{MAN_1978__238_163198,
     author = {Stephan Ruscheweyh},
     title = {Some {Convexity} and {Convolution} {Theorems} for {Analytic} {Functions.}},
     journal = {Mathematische Annalen},
     pages = {217--228},
     publisher = {mathdoc},
     volume = {238},
     year = {1978},
     zbl = {0438.30011},
     url = {http://geodesic.mathdoc.fr/item/MAN_1978__238_163198/}
}