High-resolution UVES/VLT spectra of white dwarfs observed for the ESO SN Ia progenitor survey - II. DB and DBA starsB. Voss, D. Koester, R. Napiwotzki, N. Christlieb and D. ReimersA&A, 470 3 (2007) 1079-1088DOI: https://doi.org/10.1051/0004-6361:20077285
