%0 Journal Article %A FW. Gehring %A E. Reich %T Area distortion under quasiconformal mappings %J Annales Fennici Mathematici %D 1966 %V 371-390 %U http://geodesic.mathdoc.fr/articles/10.5186/aasfm.1966.388/ %R 10.5186/aasfm.1966.388 %G en %F AFM_1966_371-390_a2