@article{GDZPPN00229706X, title = {Homogeneous Contact Structures}, journal = {Mathematische Annalen}, volume = {163}, year = {1966}, pages = {195-213}, zbl = {0145.18801}, url = {http://dml.mathdoc.fr/item/GDZPPN00229706X} }
Yano, K; Muto, Y. Homogeneous Contact Structures. Mathematische Annalen, Tome 163 (1966) pp. 195-213. http://gdmltest.u-ga.fr/item/GDZPPN00229706X/