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64.27 Isomorphisms between groups of rational numbers
Published online by Cambridge University Press: 22 September 2016
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- Copyright © Mathematical Association 1980
References
1.
Beaumont, R. A., Groups with isomorphic subgroups, Bull. Amer. Math. Soc. 51, (1945), 381–387.Google Scholar
3.
Huckaba, J. and Kirch, A., Additive subgroups of the rationals, Mathl. Gaz. 54, 3273 (No. 389, October 1970).Google Scholar