Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1958_121_4_a13, author = {B. V. Medvedev and M. K. Polivanov}, title = {On a classical model of indefinite metric}, journal = {Doklady Akademii Nauk}, pages = {623--626}, publisher = {mathdoc}, volume = {121}, number = {4}, year = {1958}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1958_121_4_a13/} }
B. V. Medvedev; M. K. Polivanov. On a classical model of indefinite metric. Doklady Akademii Nauk, Tome 121 (1958) no. 4, pp. 623-626. http://geodesic.mathdoc.fr/item/DAN_1958_121_4_a13/