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@article{MZM_1969_6_1_a8, author = {A. I. Loginov}, title = {Semidegenerate algebras in {a~Pontryagin} space}, journal = {Matemati\v{c}eskie zametki}, pages = {73--80}, publisher = {mathdoc}, volume = {6}, number = {1}, year = {1969}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1969_6_1_a8/} }
A. I. Loginov. Semidegenerate algebras in a~Pontryagin space. Matematičeskie zametki, Tome 6 (1969) no. 1, pp. 73-80. http://geodesic.mathdoc.fr/item/MZM_1969_6_1_a8/