Monitoring the activity of the Be star OT Geminorum A. Arellano Ferro, J. P. Sareyan, J. J. Avila, F. González, M. Dumont and GEOS Astron. Astrophys. Suppl. Ser., 127 3 (1998) 455-461 Published online: 15 February 1998 DOI: 10.1051/aas:1998113