1. Battin R.H. (1987): An Introduction to the Mathematics and Methods of Astrodynamics. AIAA Education Series, New York
2. Berryman, J., Schaub, H.: Analytical charge analysis for 2- and 3-craft Coulomb formations. In: AAS/AIAA Astrodynamics Specialists Conference. Lake Tahoe, CA. Paper No. 05-278 (2005a)
3. Berryman, J., Schaub, H.: Static equilibrium configurations in GEO Coulomb spacecraft formations. In: AAS Spaceflight Mechanics Meeting. Copper Mountain, CO. Paper No. AAS 05-104 (2005b)
4. Chakravorty, S.: Design and optimal control of multi-spacecraft interferometric imaging systems. Ph.D. thesis, Aerospace Engineering, University of Michigan (2004)
5. Escoubet C.P., Fehringer M., Goldstein M. (2001): The cluster mission. Ann. Geophys. 19(10/12): 1197–1200