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@article{ARM_1977__13_1_a3, author = {Slavutsky, I. Sh.}, title = {On representations of numbers by sums of squares and quadratic fields}, journal = {Archivum mathematicum}, pages = {29--40}, publisher = {mathdoc}, volume = {13}, number = {1}, year = {1977}, mrnumber = {0466049}, zbl = {0375.10031}, language = {en}, url = {http://geodesic.mathdoc.fr/item/ARM_1977__13_1_a3/} }
Slavutsky, I. Sh. On representations of numbers by sums of squares and quadratic fields. Archivum mathematicum, Tome 13 (1977) no. 1, pp. 29-40. http://geodesic.mathdoc.fr/item/ARM_1977__13_1_a3/