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@article{DAN_1961_139_4_a0, author = {Yu. P. Ginzburg}, title = {Projection in a {Hilbert} space with bilinear metric}, journal = {Doklady Akademii Nauk}, pages = {775--778}, publisher = {mathdoc}, volume = {139}, number = {4}, year = {1961}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1961_139_4_a0/} }
Yu. P. Ginzburg. Projection in a Hilbert space with bilinear metric. Doklady Akademii Nauk, Tome 139 (1961) no. 4, pp. 775-778. http://geodesic.mathdoc.fr/item/DAN_1961_139_4_a0/