@article{01423414,
title = {Smooth classification of Cartan actions of higher rank semisimple Lie groups and their lattices.},
journal = {Annals of Mathematics. Second Series},
volume = {150},
year = {1999},
pages = {743-773},
doi = {10.2307/121055},
zbl = {0940.22011},
language = {en},
url = {http://dml.mathdoc.fr/item/01423414}
}
Goetze, Edward R.; Spatzier, Ralf J. Smooth classification of Cartan actions of higher rank semisimple Lie groups and their lattices.. Annals of Mathematics. Second Series, Tome 150 (1999) pp. 743-773. doi : 10.2307/121055. http://gdmltest.u-ga.fr/item/01423414/