The stellar content of the Hamburg/ESO survey - III. Field horizontal-branch stars in the GalaxyN. Christlieb, T. C. Beers, C. Thom, R. Wilhelm, S. Rossi, C. Flynn, L. Wisotzki and D. ReimersA&A, 431 1 (2005) 143-148DOI: https://doi.org/10.1051/0004-6361:20041830