1. Lie algebraic theory of geometrical optics and optical aberrations;Dragt;J. Opt. Soc. Am.,1982
2. Lie Algebraic Methods for Changed Particle Beams and Light Optics;Forest,1984
3. The Metaplectic Group within the Heisenberg-Weyl Ring;García-Bullé,1985
4. REDUCE-2 User's Manual;Hearn,1973