@article{IM2_1976_10_6_a5,
     author = {Ya. B. Pesin},
     title = {Families of invariant manifolds corresponding to nonzero characteristic exponents},
     journal = {Izvestiya. Mathematics},
     pages = {1261--1305},
     year = {1976},
     volume = {10},
     number = {6},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1976_10_6_a5/}
}