Thomas C. Hales, Samuel P. Ferguson: A Formulation of the Kepler Conjecture. In: Discrete & Computational Geometry. Band36, Nr.1, Juli 2006, ISSN0179-5376, S.21–69, doi:10.1007/s00454-005-1211-1.
Thomas C. Hales, Samuel P. Ferguson: A Formulation of the Kepler Conjecture. In: Discrete & Computational Geometry. Band36, Nr.1, Juli 2006, ISSN0179-5376, S.21–69, doi:10.1007/s00454-005-1211-1.