1. Arnold, D. M.: 1977, ‘Genera and decompositions of torsion-free modules’, Lect. Notes in Math. 616, Springer-Verlag, New York.
2. Arnold, D. M.: 1981, ‘Pure subgroups of finite rank completely decomposable groups’, Lect. Notes in Math. 874, Springer-Verlag, New York, pp. 1–31.
3. Arnold, D. M.: 1982, ‘Finite Rank Torsion-Free Abelian Groups and Rings’, Lect. Notes in Math. 931, Springer-Verlag, New York.
4. Arnold, D. M.: 1989, ‘Representations of partially ordered sets and abelian groups’, Contemporary Math. 87, pp. 91–109.
5. Arnold, D. M. and Dugas, M.; A: ‘Locally free finite rank Butler groups and near isomorphism’, preprint.