@article{1077310231,
author = {Kelingos, John A.},
title = {Distortion of hyperbolic area under quasiconformal mappings},
journal = {Duke Math. J.},
volume = {41},
number = {1},
year = {1974},
pages = { 127-139},
language = {en},
url = {http://dml.mathdoc.fr/item/1077310231}
}
Kelingos, John A. Distortion of hyperbolic area under quasiconformal mappings. Duke Math. J., Tome 41 (1974) no. 1, pp. 127-139. http://gdmltest.u-ga.fr/item/1077310231/