Desmars, Josselin; Bancelin, David; Hestroffer, Daniel; Thuillot, William (Jun 2011). Alecian, G.; Belkacem, K.; Samadi, R.; Valls-Gabaud, D. (eds.). "Statistical analysis on the uncertainty of asteroid ephemerides". SF2A 2011: Annual Meeting of the French Society of Astronomy and Astrophysics. Paris, France: 639–642. Bibcode:2011sf2a.conf..639D. Retrieved 3 March 2016.
Desmars, Josselin; Bancelin, David; Hestroffer, Daniel; Thuillot, William (Jun 2011). Alecian, G.; Belkacem, K.; Samadi, R.; Valls-Gabaud, D. (eds.). "Statistical analysis on the uncertainty of asteroid ephemerides". SF2A 2011: Annual Meeting of the French Society of Astronomy and Astrophysics. Paris, France: 639–642. Bibcode:2011sf2a.conf..639D. Retrieved 3 March 2016.