고전 케플러-쿨롱 시스템

메모

• http://physics.stackexchange.com/questions/tagged/runge-lenz-vector
• http://analyticphysics.com/Runge%20Vector/The%20Symmetry%20Corresponding%20to%20the%20Runge%20Vector.htm

리뷰, 에세이, 강의노트

• The symmetries of the Kepler problem

사전 형태의 자료

• http://en.wikipedia.org/wiki/Laplace–Runge–Lenz_vector