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@article{MZ_1971__122_171611, author = {Michael R. Ziegler}, title = {The {Radius} of {Starlikeness} of {Certain} {Analytic} {Functions.}}, journal = {Mathematische Zeitschrift}, pages = {351--354}, publisher = {mathdoc}, volume = {122}, year = {1971}, url = {http://geodesic.mathdoc.fr/item/MZ_1971__122_171611/} }
Michael R. Ziegler. The Radius of Starlikeness of Certain Analytic Functions.. Mathematische Zeitschrift, Tome 122 (1971), pp. 351-354. http://geodesic.mathdoc.fr/item/MZ_1971__122_171611/