On the variety generated by all nilpotent Lattice-ordered Groups (with V. V. Bludov)
Sublattice subgroups of finitely presented lattice-ordered groups
Orderings and groups: a survey of
recent results
Finitely generated lattice-ordered groups with soluble word problem
Finitely presented abelian lattice-ordered groups (with F. Point)
Unilateral o-groups (with N. Ya. Medvedev)
Poly-weakly-abelian ordered groups
Automorphism groups of models of 1st order theories (with V. V. Bludov, M. Giraudet and G. Sabbagh)
Conjugacy in ordered groups (with V. V. Bludov)
Free products of ordered groups with amalgamated subgroups (with V. V. Bludov)
Word Problems, Embeddings, and Free Products of Right Ordered Groups with Amalgamated Subgroup (with V. V. Bludov)
Right orders and amalgamation for lattice-ordered groups (with V. V. Bludov)
A finitely presented orderable group with insoluble word problem (with V. V. Bludov)