@article{GDZPPN002331845, title = {Elliptic Equations and Maps of Bounded Length Disortion.}, journal = {Mathematische Annalen}, volume = {280}, year = {1988}, pages = {423-444}, zbl = {0632.35021}, url = {http://dml.mathdoc.fr/item/GDZPPN002331845} }
Martio, O.; Väisälä, J. Elliptic Equations and Maps of Bounded Length Disortion.. Mathematische Annalen, Tome 280 (1988) pp. 423-444. http://gdmltest.u-ga.fr/item/GDZPPN002331845/