1. A. Abad, R. Barrio, F. Blesa, M. Rodriguez, TIDES: a Taylor series integrator for differential equations, ACM Trans. Math. Software, in press, Software available online at http:gme.unizar.es/software/tides.
2. Computing periodic orbits with arbitrary precision;Abad;Phys. Rev. E,2011
3. Handbook of Mathematical Functions,1972
4. The outer solar system for 200 million years;Applegate;Astron. J.,1986
5. D.H. Bailey, A compendium of BBP-type formulas, Apr. 2011, available at http://crd-legacy.lbl.gov/dhbailey/dhbpapers/bbp-formulas.pdf. An interactive database is online at http://bbp.carma.newcastle.edu.au.