@article{01596865, title = {Reduction in contact geometry.}, journal = {Journal of Lie Theory}, volume = {11}, year = {2001}, pages = {9-22}, zbl = {0978.53131}, language = {en}, url = {http://dml.mathdoc.fr/item/01596865} }
Loose, Frank. Reduction in contact geometry.. Journal of Lie Theory, Tome 11 (2001) pp. 9-22. http://gdmltest.u-ga.fr/item/01596865/