@article{01315573, title = {Contact Lie algebras of vector fields on the plane.}, journal = {Geometry \& Topology}, volume = {3}, year = {1999}, pages = {1-20}, doi = {10.2140/gt.1999.3.1}, zbl = {0955.17016}, language = {en}, url = {http://dml.mathdoc.fr/item/01315573} }
Doubrov, Boris M.; Komrakov, Boris P. Contact Lie algebras of vector fields on the plane.. Geometry & Topology, Tome 3 (1999) pp. 1-20. doi : 10.2140/gt.1999.3.1. http://gdmltest.u-ga.fr/item/01315573/