Beaumont, Ross A.; Zuckerman, H. S. A characterization of the subgroups of the additive rationals. (English) Zbl 0043.02904 Pac. J. Math. 1, 169-177 (1951). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 21 Documents Keywords:group theory PDFBibTeX XMLCite \textit{R. A. Beaumont} and \textit{H. S. Zuckerman}, Pac. J. Math. 1, 169--177 (1951; Zbl 0043.02904) Full Text: DOI