WINGS: A WIde-field Nearby Galaxy-cluster Survey - II. Deep optical photometry of 77 nearby clusters
J. Varela, M. D'Onofrio, C. Marmo, G. Fasano, D. Bettoni, A. Cava, W. J. Couch, A. Dressler, P. Kjærgaard, M. Moles, E. Pignatelli, B. M. Poggianti and T. Valentinuzzi
