Kopytov, V. M. Non-Abelian varieties of lattice-ordered groups in which every solvable \(\ell\)-group is Abelian. (Russian) Zbl 0574.06012 Mat. Sb., N. Ser. 126(168), No. 2, 247-266 (1985). Reviewer: F.Šik MSC: 06F15 08B15 06B20 20F60 20E10 PDF BibTeX XML Cite \textit{V. M. Kopytov}, Mat. Sb., Nov. Ser. 126(168), No. 2, 247--266 (1985; Zbl 0574.06012) Full Text: EuDML OpenURL
Medvedev, N. Ya. On the lattice of approximable \(\ell\)-varieties. (Russian) Zbl 0551.06017 Czech. Math. J. 34(109), 6-17 (1984). Reviewer: V.Novák MSC: 06F15 08B15 06B20 PDF BibTeX XML Cite \textit{N. Ya. Medvedev}, Czech. Math. J. 34(109), 6--17 (1984; Zbl 0551.06017) Full Text: EuDML OpenURL