Lagerkvist, C. -I.; Magnusson, P.; Debehogne, H.; Hoffmann, M.; Erikson, A.; de Campos, A.; ve diğerleri. (November 1992). "Physical studies of asteroids. XXV - Photoelectric photometry of asteroids obtained at ESO and Hoher List Observatory". Astronomy and Astrophysics Supplement Series. 95 (3). ss.461-470. Bibcode:1992A&AS...95..461L. ISSN0365-0138.
Lagerkvist, C. -I.; Magnusson, P.; Debehogne, H.; Hoffmann, M.; Erikson, A.; de Campos, A.; ve diğerleri. (November 1992). "Physical studies of asteroids. XXV - Photoelectric photometry of asteroids obtained at ESO and Hoher List Observatory". Astronomy and Astrophysics Supplement Series. 95 (3). ss.461-470. Bibcode:1992A&AS...95..461L. ISSN0365-0138.