Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MT_1989_14_a10, author = {E. V. Shikin}, title = {The isometric embedding problem and {Monge--Amp\`ere} equations of hyperbolic type}, journal = {Matemati\v{c}eskie trudy}, pages = {245--258}, publisher = {mathdoc}, volume = {14}, year = {1989}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MT_1989_14_a10/} }
E. V. Shikin. The isometric embedding problem and Monge--Amp\`ere equations of hyperbolic type. Matematičeskie trudy, Tome 14 (1989), pp. 245-258. http://geodesic.mathdoc.fr/item/MT_1989_14_a10/