Simultaneous time-series spectroscopy and multi-band photometry of the sdBV PG 1605+072 S. Falter, U. Heber, S. Dreizler, S. L. Schuh, O. Cordes and H. Edelmann A&A, 401 1 (2003) 289-296 Published online: 17 March 2003 DOI: 10.1051/0004-6361:20030122