@article{10_1090_S0894_0347_1992_1157290_3,
     author = {Lempert, L\'aszl\'o},
     title = {On three-dimensional {Cauchy-Riemann} manifolds},
     journal = {Journal of the American Mathematical Society},
     pages = {923--969},
     year = {1992},
     volume = {05},
     number = {4},
     doi = {10.1090/S0894-0347-1992-1157290-3},
     url = {http://geodesic.mathdoc.fr/articles/10.1090/S0894-0347-1992-1157290-3/}
}