@article{01066112,
title = {A new intrinsic curvature invariant for centroaffine hypersurfaces.},
journal = {Beitr\"age zur Algebra und Geometrie},
volume = {38},
year = {1997},
pages = {437-458},
zbl = {0884.53013},
language = {en},
url = {http://dml.mathdoc.fr/item/01066112}
}
Scharlach, Christine; Simon, Udo; Verstraelen, Leopold; Vrancken, Luc. A new intrinsic curvature invariant for centroaffine hypersurfaces.. Beiträge zur Algebra und Geometrie, Tome 38 (1997) pp. 437-458. http://gdmltest.u-ga.fr/item/01066112/