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@article{MZ_1984__187_173509, author = {Johnny E. Brown}, title = {Properties of {Some} {Extremal} {Nonvanishing} {Univalent} {Functions.}}, journal = {Mathematische Zeitschrift}, pages = {519--526}, publisher = {mathdoc}, volume = {187}, year = {1984}, zbl = {0576.30015}, url = {http://geodesic.mathdoc.fr/item/MZ_1984__187_173509/} }
Johnny E. Brown. Properties of Some Extremal Nonvanishing Univalent Functions.. Mathematische Zeitschrift, Tome 187 (1984), pp. 519-526. http://geodesic.mathdoc.fr/item/MZ_1984__187_173509/