@article{GDZPPN002097869, title = {Non-Realizable CR Structures.}, journal = {Inventiones mathematicae}, volume = {69}, year = {1982}, pages = {231-250}, zbl = {0487.32015}, url = {http://dml.mathdoc.fr/item/GDZPPN002097869} }
Jacobowitz, Howard; Treves, Francois. Non-Realizable CR Structures.. Inventiones mathematicae, Tome 69 (1982) pp. 231-250. http://gdmltest.u-ga.fr/item/GDZPPN002097869/