درگاه آلمان Heliocentrism History of physics Kepler conjecture Kepler triangle Kepler-Poinsotpolyhedra Kepler's laws of planetary motion Keplerian problem
Star polytopes and the Schläfli function f(α,β,γ) p. 121 1. The Kepler–Poinsotpolyhedra McCormack, Joseph P. (1931), Solid Geometry, D. Appleton-Century