%0 Journal Article %A S.L. Krushkal %T Grunsky coefficient inequalities, Caratheodory metric and extremal quasiconformal mappings. %J Commentarii mathematici Helvetici %D 1989 %P 650-660 %V 64 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMH_1989__64_1_140176/ %F CMH_1989__64_1_140176