%0 Journal Article %A Olli Lehto %A Olli Tammi %T Area method and univalent functions with quasiconformal extensions %J Annales Fennici Mathematici %D 1976 %P 307-313 %V 2 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.5186/aasfm.1976.0220/ %R 10.5186/aasfm.1976.0220 %G en %F AFM_1976_2_1_a31