Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1963_149_4_a4, author = {S. L. Pevzner}, title = {Invariants and canonical representations of quadrics in quasi-elliptic spaces}, journal = {Doklady Akademii Nauk}, pages = {773--775}, publisher = {mathdoc}, volume = {149}, number = {4}, year = {1963}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1963_149_4_a4/} }
S. L. Pevzner. Invariants and canonical representations of quadrics in quasi-elliptic spaces. Doklady Akademii Nauk, Tome 149 (1963) no. 4, pp. 773-775. http://geodesic.mathdoc.fr/item/DAN_1963_149_4_a4/