@article{GDZPPN002438224, title = {Quadruples and spatial quasiconformal mappings.}, journal = {Mathematische Zeitschrift}, volume = {205}, year = {1990}, pages = {617-628}, zbl = {0692.30018}, url = {http://dml.mathdoc.fr/item/GDZPPN002438224} }
Vuorinen, Matti. Quadruples and spatial quasiconformal mappings.. Mathematische Zeitschrift, Tome 205 (1990) pp. 617-628. http://gdmltest.u-ga.fr/item/GDZPPN002438224/