Department of Mathematics, University of Pisa, Italy (ed.). "AstDys 2007OR10 Ephemerides". Arquivado dende o orixinal o 26-05-2011. Consultado o 16-03-2009.
Department of Mathematics, University of Pisa, Italy (ed.). "AstDys 2007OR10 Ephemerides". Arquivado dende o orixinal o 26-05-2011. Consultado o 16-03-2009.