Long-term visual spectrophotometric behaviour of Be stars A. Moujtahid, J. Zorec, A. M. Hubert, A. Garcia and G. Burki Astron. Astrophys. Suppl. Ser., 129 2 (1998) 289-311 Published online: 15 April 1998 DOI: 10.1051/aas:1998186