Blyth, T. S.; Noor, A. S. A.; Varlet, J. C. Congruences on double MS-algebras. (English) Zbl 0632.06016 Bull. Soc. R. Sci. Liège 56, 143-152 (1987). Reviewer: T.Katriňák MSC: 06D30 06D15 08B15 06B10 06B20 PDFBibTeX XMLCite \textit{T. S. Blyth} et al., Bull. Soc. R. Sci. Liège 56, 143--152 (1987; Zbl 0632.06016)
Blyth, T. S.; Noor, A. S. A.; Varlet, J. C. Subvarieties of double MS-algebras into which an MS-algebra can be extended. (English) Zbl 0621.06008 Bull. Soc. R. Sci. Liège 56, 47-53 (1987). Reviewer: T.Katriňák MSC: 06D30 06D15 08B15 06B20 PDFBibTeX XMLCite \textit{T. S. Blyth} et al., Bull. Soc. R. Sci. Liège 56, 47--53 (1987; Zbl 0621.06008)