TY - `JOUR` AU - Villata, Massimo AU - Heidt, Jochen AU - Mommert, Michael TI - The GASP-WEBT monitoring of 3C 454.3 during the 2008 optical-to-radio and γ-ray outburst PY - 2009 LA - eng SP - 4 S. T2 - Astronomy and astrophysics PY - 2009 VL - 504 SI - 3 SP - L9-L12 DO - 10.1051/0004-6361/200912732 AN - UBHD-67444555 ER -