found: Work cat.: 92-56863: Kozhamthadam, J. Discovery of Kepler's laws : the interaction of science, philosophy, and religion, c1994.
found: Conc. dict. physics(Kepler laws)
found: NASA(Kepler laws)
found: Encyc. astron. astrophysics(Kepler's laws of planetary motion)
found: Encyc. astron. (Satterthwaite)(Kepler's laws of planetary motion)
found: LC database, 9/22/93.
found: McGraw Hill dict. sci. tech.(Three laws that describe the motions of planets in their orbits)
found: Facts file dict. astron.