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@article{DAN_1966_171_2_a6, author = {R. S. Ismagilov}, title = {Rings of operators in a space with an indefinite metric}, journal = {Doklady Akademii Nauk}, pages = {269--271}, publisher = {mathdoc}, volume = {171}, number = {2}, year = {1966}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1966_171_2_a6/} }
R. S. Ismagilov. Rings of operators in a space with an indefinite metric. Doklady Akademii Nauk, Tome 171 (1966) no. 2, pp. 269-271. http://geodesic.mathdoc.fr/item/DAN_1966_171_2_a6/