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Translated from Ukrainskii Matematicheskii Zhurnal, Vol. 22, No. 4, pp. 531–533, July–August, 1970.
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Vvedenskii, O.N. Subgroups of norms in elliptic curves defined over a local field. Ukr Math J 22, 456–458 (1970). https://doi.org/10.1007/BF01090771
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DOI: https://doi.org/10.1007/BF01090771