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@article{AA_1991_3_5_a8, author = {O. M. Fomenko}, title = {Sums of three squares in imaginary quadratic fields}, journal = {Algebra i analiz}, pages = {190--212}, publisher = {mathdoc}, volume = {3}, number = {5}, year = {1991}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AA_1991_3_5_a8/} }
O. M. Fomenko. Sums of three squares in imaginary quadratic fields. Algebra i analiz, Tome 3 (1991) no. 5, pp. 190-212. http://geodesic.mathdoc.fr/item/AA_1991_3_5_a8/