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  Classical Mechanics: Transformations, Flows, Integrable and Chaotic Dynamics - Joseph L. McCauley - Google Books

  http://books.google.de/books?id=PxytO6eByI8C&pg=PA60&lpg=PA60&dq=%22covariance+is+not+a+physical+principle%22&source=bl&ots=MU0I

  An advanced text for first-year graduate students in physics and engineering taking a standard classical mechanics course, this is the first book to describe the subject in the context of the language and methods of modern nonlinear dynamics. The…

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  A Modern Approach to Classical Mechanics - Harald Iro - Google Books

  http://books.google.de/books?id=-L5ckgdxA5YC&lpg=PA168&dq=%22reference%20frame%22%20mechanics&pg=PA167#v=onepage&q&f=false

  The approach to classical mechanics adopted in this book includes and stresses recent developments in nonlinear dynamical systems. The concepts necessary to formulate and understand chaotic behavior are presented. Besides the conventional topics (such as…

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