00423nam a2200133Ia 4500020001500000082002000015100002600035245012000061260003600181300002300217490003900240500000500279700000500284  a3540401210  a515.42bM331.OS  aMargulis, Grigoriy A.  aOn some aspects of the theory of Anosov systemsbwith a survey by Richard Sharp:periodic orbits of hyperbolic flows  aNew YorkbSpringer-Verlagc2004  a138p. Bibl. Index.  aSpringer monographs in Mathematics  a  a