M. Fatih Demirci Ali Shokoufandeh Yakov Keselman Lars Bretzner Sven J. Dickinson Object Recognition as Many-to-Many Feature Matching. 203-222 2006 69 International Journal of Computer Vision 2 http://dx.doi.org/10.1007/s11263-006-6993-y db/journals/ijcv/ijcv69.html#DemirciSKBD06