books.google.com - This collection of papers provides a broad view of the development of Lorentz and Poincare invariance and spacetime symmetry throughout the past 100 years....http://books.google.com/books/about/Lorentz_and_Poincar%C3%A9_Invariance.html?id=jryk42J8oQIC&utm_source=gb-gplus-shareLorentz and Poincaré Invariance
