NGC 5719/13: interacting spirals forming a counter–rotating stellar disc D. Vergani, A. Pizzella, E. M. Corsini, W. van Driel, L. M. Buson, R.-J. Dettmar and F. Bertola A&A, 463 3 (2007) 883-892 Published online: 20 November 2006 DOI: 10.1051/0004-6361:20066413