Journals / International Electronic Journal of Geometry / 2011 / Cilt: 4 - Sayı: 2THE CROSS-RATIO MANIFOLD: A MODEL OF CENTRO-AFFINE GEOMETRYRoland HİLDEBRANDJournalInternational Electronic Journal of GeometryIssue2011 · Cilt: 4 - Sayı: 2Pages32–62DOI—