%0 Journal Article %A Blevins, Donald K. %T Covering Theorems for Univalent Functions Mapping onto Domains Bounded by Quasiconformal Circles %J Canadian journal of mathematics %D 1976 %P 627-631 %V 28 %N 3 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1976-061-8/ %R 10.4153/CJM-1976-061-8 %F 10_4153_CJM_1976_061_8