%0 Journal Article %A Stephan Ruscheweyh %T Linear operators between classes of prestarlike functions. %J Commentarii mathematici Helvetici %D 1977 %P 497-510 %V 52 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMH_1977__52_139707/ %F CMH_1977__52_139707