Bludov, V. V.; Glass, A. M. W. On free products of right ordered groups with amalgamated subgroups. (English) Zbl 1167.06010 Math. Proc. Camb. Philos. Soc. 146, No. 3, 591-601 (2009). Reviewer: Marius Tărnăuceanu (Iaşi) MSC: 06F15 PDFBibTeX XMLCite \textit{V. V. Bludov} and \textit{A. M. W. Glass}, Math. Proc. Camb. Philos. Soc. 146, No. 3, 591--601 (2009; Zbl 1167.06010) Full Text: DOI
Powell, Wayne B.; Tsinakis, Constantine The failure of the amalgamation property for representable varieties of l-groups. (English) Zbl 0696.06010 Math. Proc. Camb. Philos. Soc. 106, No. 3, 439-443 (1989). Reviewer: N.Ya.Medvedev MSC: 06F15 PDFBibTeX XMLCite \textit{W. B. Powell} and \textit{C. Tsinakis}, Math. Proc. Camb. Philos. Soc. 106, No. 3, 439--443 (1989; Zbl 0696.06010) Full Text: DOI