1. Methods of Information Geometry;Amari,2000
2. Hypersurfaces in statistical manifolds;Furuhata;Differential Geom. Appl.,2009
3. H. Furuhata, T. Kurose, Hessian manifolds of nonpositive constant Hessian sectional curvature, preprint.
4. Foundations of Differential Geometry, vol. II;Kobayashi,1969
5. Affine Differential Geometry;Nomizu,1994