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@article{DAN_1990_310_2_a9, author = {I. V. Petrova}, title = {Some aspects of the theory of $L_2$-approximations on a hyperboloid in $R^{n,1}$}, journal = {Doklady Akademii Nauk}, pages = {298--304}, publisher = {mathdoc}, volume = {310}, number = {2}, year = {1990}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1990_310_2_a9/} }
I. V. Petrova. Some aspects of the theory of $L_2$-approximations on a hyperboloid in $R^{n,1}$. Doklady Akademii Nauk, Tome 310 (1990) no. 2, pp. 298-304. http://geodesic.mathdoc.fr/item/DAN_1990_310_2_a9/