Tài liệu tham khảo WikiPedia: 951_Gaspra http://adsabs.harvard.edu/abs/1994Icar..107...23T http://adsabs.harvard.edu/abs/2002Icar..158...98K http://www.psi.edu/pds/archive/astdata04/simps04/d... http://www.psi.edu/pds/archive/lc.html http://cat.inist.fr/?aModele=afficheN&cpsidt=39849... http://neo.jpl.nasa.gov/images/gaspra.html //dx.doi.org/10.1006%2Ficar.1994.1004 //dx.doi.org/10.1006%2Ficar.2002.6837 http://www.seds.org/nineplanets/nineplanets/gaspra... https://ssd.jpl.nasa.gov/horizons.cgi?find_body=1&...
