Voir la notice de l'article provenant de la source Electronic Library of Mathematics
@article{DOCMA_1998__S8__a50, author = {Eliashberg, Yakov}, title = {Invariants in contact topology}, journal = {Documenta mathematica}, pages = {327--338}, publisher = {mathdoc}, volume = {ICM Berlin 1998, Vol. II}, year = {1998}, language = {en}, url = {http://geodesic.mathdoc.fr/item/DOCMA_1998__S8__a50/} }
Eliashberg, Yakov. Invariants in contact topology. Documenta mathematica, ICM Berlin 1998, Vol. II (1998), pp. 327-338. http://geodesic.mathdoc.fr/item/DOCMA_1998__S8__a50/