Hot subdwarfs from the ESO Supernova Ia Progenitor Survey - I. Atmospheric parameters and cool companions of sdB starsT. Lisker, U. Heber, R. Napiwotzki, N. Christlieb, Z. Han, D. Homeier and D. ReimersA&A, 430 1 (2005) 223-243DOI: https://doi.org/10.1051/0004-6361:20040232
