Early optical and millimeter observations of GRB 030226 afterglow S. B. Pandey, R. Sagar, G. C. Anupama, D. Bhattacharya, D. K. Sahu, A. J. Castro-Tirado and M. Bremer A&A, 417 3 (2004) 919-924 Published online: 26 March 2004 DOI: 10.1051/0004-6361:20034515