@article{05708886, title = {Indefinite affine hyperspheres admitting a pointwise symmetry. II.}, journal = {SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]}, volume = {5}, year = {2009}, zbl = {1189.53012}, language = {en}, url = {http://dml.mathdoc.fr/item/05708886} }
Scharlach, Christine. Indefinite affine hyperspheres admitting a pointwise symmetry. II.. SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only], Tome 5 (2009) . http://gdmltest.u-ga.fr/item/05708886/