@article{GDZPPN002107015, title = {Classification of overtwisted contact structures on 3-manifolds.}, journal = {Inventiones mathematicae}, volume = {96}, year = {1989}, pages = {623-638}, zbl = {0684.57012}, url = {http://dml.mathdoc.fr/item/GDZPPN002107015} }
Eliashberg, Y. Classification of overtwisted contact structures on 3-manifolds.. Inventiones mathematicae, Tome 96 (1989) pp. 623-638. http://gdmltest.u-ga.fr/item/GDZPPN002107015/