@article{AFM_1966_371-390_a2,
     author = {FW. Gehring and E. Reich},
     title = {Area distortion under quasiconformal mappings},
     journal = {Annales Fennici Mathematici},
     publisher = {mathdoc},
     volume = {371-390},
     year = {1966},
     doi = {10.5186/aasfm.1966.388},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.5186/aasfm.1966.388/}
}