Sub-degree CMB anisotropy from space - II. In-flight calibration M. Bersanelli, P. F. Muciaccia, P. Natoli, N. Vittorio and N. Mandolesi Astron. Astrophys. Suppl. Ser., 121 2 (1997) 393-404 Published online: 15 February 1997 DOI: 10.1051/aas:1997322