Direct determination of quasar redshifts J. H. J. de Bruijne, A. P. Reynolds, M. A. C. Perryman, A. Peacock, F. Favata, N. Rando, D. Martin, P. Verhoeve and N. Christlieb A&A, 381 3 (2002) L57-L60 Published online: 15 January 2002 DOI: 10.1051/0004-6361:20011660