@article{GT_2015_19_1_a7,
     author = {Borman, Matthew Strom and Zapolsky, Frol},
     title = {Quasimorphisms on contactomorphism groups and contact rigidity},
     journal = {Geometry & topology},
     pages = {365--411},
     publisher = {mathdoc},
     volume = {19},
     number = {1},
     year = {2015},
     doi = {10.2140/gt.2015.19.365},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/gt.2015.19.365/}
}