Differential CCD Photometry of 1980 Tezcatlipoca, 2368 Beltrovata 4769 Castalia, 4953 1990 MU and 4954 Eric Lagerros, J. S. V. ; Lindgren, M. ; Lagerkvist, C. -I. ; Hahn, G. Abstract Publication: Asteroids, Comets, Meteors 1993 Pub Date: 1993 Bibcode: 1993LPICo.810..176L