Warps and correlations with intrinsic parameters of galaxies in the visible and radio N. Castro-Rodríguez, M. López-Corredoira, M. L. Sánchez-Saavedra and E. Battaner A&A, 391 2 (2002) 519-530 Published online: 02 August 2002 DOI: 10.1051/0004-6361:20020895