@article{MZ_1986__191_173679,
     author = {D.H. Hamilton},
     title = {Covering {Theorems} for {Univalent} {Functions.}},
     journal = {Mathematische Zeitschrift},
     pages = {327--350},
     publisher = {mathdoc},
     volume = {191},
     year = {1986},
     zbl = {0624.30007},
     url = {http://geodesic.mathdoc.fr/item/MZ_1986__191_173679/}
}