Balloon 090100001: A bright, high amplitude sdB pulsator R. Oreiro, A. Ulla, F. Pérez Hernández, R. Østensen, C. Rodríguez López and J. MacDonald A&A, 418 1 (2004) 243-247 Published online: 02 April 2004 DOI: 10.1051/0004-6361:20035844