@article{01784608, title = {Cubic form geometry for surfaces in }, journal = {Beitr\"age zur Algebra und Geometrie}, volume = {43}, year = {2002}, pages = {275-296}, zbl = {1010.53016}, language = {en}, url = {http://dml.mathdoc.fr/item/01784608} }
Lusala, Tsasa. Cubic form geometry for surfaces in . Beiträge zur Algebra und Geometrie, Tome 43 (2002) pp. 275-296. http://gdmltest.u-ga.fr/item/01784608/