@article{10_4007_annals_2008_167_643,
     author = {Marcelo Viana},
     title = {Almost all cocycles over any hyperbolic system have nonvanishing {Lyapunov} exponents},
     journal = {Annals of mathematics},
     pages = {643--680},
     publisher = {mathdoc},
     volume = {167},
     number = {2},
     year = {2008},
     doi = {10.4007/annals.2008.167.643},
     mrnumber = {2415384},
     zbl = {1173.37019},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4007/annals.2008.167.643/}
}