Applied Mathematics 89, Translated from the German edition of 1934, Academic Press Inc. New York (1980) Heinrich Tietze, Ueber die topologischen Invarianten mehrdimensionaler Mannigfaltigkeiten, Monatsh. fuer Math. und Phys. 19, 1–118 (1908) (20) English translation (2008) by John Stillwell. Matthew Watkins, "A Short Survey of Lens Spaces" (1990 undergraduate dissertation) External links Lens spaces at the Manifold Atlas Lens spaces: a history at the Manifold Atlas Fake lens spaces at the Manifold Atlas 3-manifolds Manifolds