1. Orbital effects of LAGEOS seasons and eclipses;Afonso;Ann. Geophys.,1989
2. Andrés de la Fuente, J.I., 2007. Enhanced Modelling of LAGEOS Non-Gravitational Perturbations (Ph.D. thesis). Delft University Press. Sieca Repro, Turbineweg 20, 2627 BP Delft, The Netherlands.
3. ASM International Handbook Committee, 1990. Metals Handbook, vol. 2 – Properties and Selection: Nonferrous Alloys and Special-Purpose Materials. ASM International 10th Ed.
4. ASM Metals Reference Book,1993
5. The rotation of LAGEOS;Bertotti;J. Geophys. Res.,1991