Discovery of seven ZZ Ceti stars using a new photometric selection methodB. Voss, D. Koester, R. Østensen, S. O. Kepler, R. Napiwotzki, D. Homeier and D. ReimersA&A, 450 3 (2006) 1061-1070DOI: https://doi.org/10.1051/0004-6361:20054227
