Warner, Brian D. (2005). "Asteroid lightcurve analysis at the Palmer Divide Observatory - winter 2004-2005". The Minor Planet Bulletin. 32 (3): 54–58. Bibcode:2005MPBu...32...54W.{{cite journal}}: CS1 maint: postscript (link)
Pilcher, Frederick (January 2020). "Lightcurves and Rotation Periods of 33 Polyhymnia, 206 Hersilia, 395 Delia, 400 Ducrosa, 900 Rosalinde, and 1066 Lobelia". Bulletin of the Minor Planets Section of the Association of Lunar and Planetary Observers. 47 (1): 34–36. Bibcode:2020MPBu...47...34P.