@article{10_1090_jams_924, author = {Pardon, John}, title = {Contact homology and virtual fundamental cycles}, journal = {Journal of the American Mathematical Society}, pages = {825--919}, publisher = {mathdoc}, volume = {32}, number = {3}, year = {2019}, doi = {10.1090/jams/924}, url = {http://geodesic.mathdoc.fr/articles/10.1090/jams/924/} }