[1] A. Bigard: Contribution a la theorie des groupes reticules. These, University Paris, (1969). MR 0250950

[2] R. Byrd: Complete distributivity in lattice-ordered groups. Pacific J. Math. 20 (1967), 423-432. MR 0207866 | Zbl 0178.02902

[3] R. Byrd, T. Lloyd: Closed subgroups and complete distributivity in lattice-ordered groups. Math Zeitschr. 101 (1967) 123-130. MR 0218284 | Zbl 0178.02902

[4] P. Conrad: Some structure theorem for lattice-ordered groups. Trans. Amer. Math. Soc. 99 (1961), 212-240. MR 0121405

[5] P. Conrad J. Harvey, C. Holland: The Hahn embedding theorem for abelian lattice ordered groups. Trans. Amer. Math. Soc. 108 (1963), 143-169. MR 0151534

[6] P. Conrad: The lattice of all convex $l$-subgroups of a lattice-ordered group. Czech. Math. J. 15 (1965), 101-123. MR 0173716 | Zbl 0135.06301

[7] P. Conrad: Lex-subgroups of lattice-ordered groups. Czech. Math. J. 18 (1968), 86-103. MR 0225697 | Zbl 0155.05902

[8] P. Conrad A. Bigard, S. Wolfenstein: Compactly generated lattice-ordered groups. Math. Zeit. 107 (1968), 201-211. MR 0236083

[9] P. Conrad, D. McAlister: The completion of a lattice-ordered group. J. Australian Math. Soc. 9 (1969), 182-208. MR 0249340

[10] P. Conrad: Lattice-ordered groups. Lecture notes, Tulane Math. Library (1970). Zbl 0258.06011

[11] P. Conrad, R. Bleier: The lattice of closed ideals and $a^*$-extensions of an abelian $l$-group. Pacific J. Math. 47 (1973), 329-340. MR 0325486 | Zbl 0238.06012

[12] P. Conrad, P. Montgomery: Lattice-ordered groups with rank over components. Czech. Math. J. 25 (1975), 445-453. MR 0387147

[13] P. Conrad: Torsion radicals of lattice-ordered groups. Symposia Mathematica, Vol. XXI (1977), 479-513. MR 0465969 | Zbl 0372.06011

[14] J. Martinez: Varieties of lattice-ordered groups. Math. Zeitschr. 137 (1974), 265-284. MR 0354483 | Zbl 0274.20034

[15] J. Martinez: Torsion theory for lattice-ordered groups. Czech. Math. J. 25 (1975), 284-299. MR 0389705 | Zbl 0321.06020

[16] J. Martinez: Torsion theory for lattice-ordered groups. Part II: Homogeneous $l$-groups. To appear. MR 0389705

[17] F. Petersen: Contributions to the theory of regular and prime subgroups of lattice-ordered groups. Dissertation Tulane University (1967).

[18] F. Šik: Sous-groupes simples et ideaux simples des groupes réticulés. С. R. Acad. Sci. Paris 261 (1965), 2791-2793. MR 0194528