3D kinematics of white dwarfs from the SPY project E.-M. Pauli, R. Napiwotzki, M. Altmann, U. Heber, M. Odenkirchen and F. Kerber A&A, 400 3 (2003) 877-890 Published online: 07 March 2003 DOI: 10.1051/0004-6361:20030012