Kelley, M. S.; Gaffey, M. J.; Reddy, V. (12–16 March 2007). "Near-IR Spectroscopy and Possible Meteorite Analogs for Asteroid (253)". 38th Lunar and Planetary Science Conference. League City, Texas: Lunar & Planetary Institute. p.2366. Bibcode:2007LPI....38.2366K.
"(253) Mathilde – Proper Elements". Asteroids Dynamic Site. Retrieved 23 July 2026. For more information about proper orbital elements, go to the "Proper Elements" tab and then click "[Help]" at the upper right corner.