@article{GDZPPN00228684X, title = {A Class of Pseudo-Conformal and Quasi-Pseudo-Conformal Mappings.}, journal = {Mathematische Annalen}, volume = {136}, year = {1958}, pages = {134-138}, zbl = {0089.05702}, url = {http://dml.mathdoc.fr/item/GDZPPN00228684X} }
Bergman, St. A Class of Pseudo-Conformal and Quasi-Pseudo-Conformal Mappings.. Mathematische Annalen, Tome 136 (1958) pp. 134-138. http://gdmltest.u-ga.fr/item/GDZPPN00228684X/