Gaglione, Anthony M.; Lipschutz, Seymour; Spellman, Dennis Survey of generalized pregroups and a question of Reinhold Baer. (English) Zbl 1272.20024 Algebra Discrete Math. 13, No. 2, 220-236 (2012). MSC: 20E06 20F05 20F06 68Q42 PDFBibTeX XMLCite \textit{A. M. Gaglione} et al., Algebra Discrete Math. 13, No. 2, 220--236 (2012; Zbl 1272.20024)
Gaglione, Anthony M.; Lipschutz, Seymour; Spellman, Dennis Some properties of nilpotent groups. (English) Zbl 1199.20064 Algebra Discrete Math. 2009, No. 4, 66-77 (2009). MSC: 20F18 20F05 20E07 20F24 PDFBibTeX XMLCite \textit{A. M. Gaglione} et al., Algebra Discrete Math. 2009, No. 4, 66--77 (2009; Zbl 1199.20064)