Structural stability of Lorenz attractors

J. Guckenheimer, A Strange, Strange Attractor, inThe Hopf Bifurcation Theorem and its Applications, ed. byJ. E. Marsden andM. McCracken, Springer-Verlag (1976), 368–381. J. Guckenheimer, On Bifurcations of Maps of the Interval,Inv. Math., to appear. M. Hirsch, C. Pugh, Stable Manifolds and Hyperbolic Sets,Proceedings of Symposia in Pure Mathematics XIV, Am. Math. Soc. (1970), 133–163. M. Hirsch, C. Pugh, M. Shub,Invariant Manifolds, Springer Lecture Notes in Math.,583 (1977). E. Lorenz, Deterministic Nonperiodic Flow,Journal of Atmospheric Sciences,20 (1963), 130–141. J. Palis, S. Smale, Structural Stability Theorems,Proceedings of Symposia in Pure Mathematics XIV, Am. Math. Soc., 1970, 223–231. W. Parry, Symbolic dynamics and transformations of the unit interval,Trans. Amer. Math. Soc.,122 (1966), 368–378. C. L. Siegel, J. Moser,Lectures on Celestial Mechanics, Springer-Verlag, 1971. S. Smale, Differential Dynamical Systems,Bull. Am. Math. Soc.,73 (1967), 747–817. F. Takens, Partially Hyperbolic Fixed Points,Topology,10 (1971), 133–147. R. F. Williams, Expanding Attractors,Publ. I.H.E.S., no.43 (1974), 196–203. R. F. Williams,The Structure of Lorenz Attractors, Preprint.