Lee, Youn W. On normal torsion-free finite index subgroups of polyhedral groups. (English) Zbl 0675.57018 Topology Appl. 32, No. 1, 25-47 (1989). Reviewer: B.Zimmermann MSC: 57S30 20F65 57M25 57N10 PDFBibTeX XMLCite \textit{Y. W. Lee}, Topology Appl. 32, No. 1, 25--47 (1989; Zbl 0675.57018) Full Text: DOI
Lee, Youn W. Abelian rank of normal torsion-free finite index subgroups of polyhedral groups. (English) Zbl 0575.57025 Trans. Am. Math. Soc. 290, 735-745 (1985). MSC: 57S30 20H15 51F15 57N10 PDFBibTeX XMLCite \textit{Y. W. Lee}, Trans. Am. Math. Soc. 290, 735--745 (1985; Zbl 0575.57025) Full Text: DOI
Brunner, Andrew M.; Lee, Youn W.; Wielenberg, Norbert J. Polyhedral groups and graph amalgamation products. (English) Zbl 0571.57032 Topology Appl. 20, 289-304 (1985). Reviewer: B.Zimmermann MSC: 57S30 20H15 20E06 20F34 57M05 PDFBibTeX XMLCite \textit{A. M. Brunner} et al., Topology Appl. 20, 289--304 (1985; Zbl 0571.57032) Full Text: DOI