@article{PMIHES_1994__79__131_0, author = {Katok, Anatole and Spatzier, Ralph J.}, title = {First cohomology of {Anosov} actions of higher rank abelian groups and applications to rigidity}, journal = {Publications Math\'ematiques de l'IH\'ES}, pages = {131--156}, publisher = {Institut des Hautes \'Etudes Scientifiques}, volume = {79}, year = {1994}, zbl = {0819.58027}, mrnumber = {96c:58132}, language = {en}, url = {http://archive.numdam.org/item/PMIHES_1994__79__131_0/} }