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Advances in Space Research > 2007 > 39 > 2 > 230-235
Acta Astronautica > 2006 > 59 > 8-11 > 807-816
General Relativity and Gravitation > 2004 > 36 > 10 > 2373-2416
Advances in Space Research > 2007 > 39 > 2 > 230-235
Acta Astronautica > 2006 > 59 > 8-11 > 807-816
General Relativity and Gravitation > 2004 > 36 > 10 > 2373-2416