1. Mixed-Metal Clusters
2. D. A. Roberts and G. L.Geoffroy, in Comprehensive Organometallic Chemistry, Pergamon, Oxford, 1982, vol. 6, ch. 40;
3. Catalysis by Molecular Metal Clusters
4. Early-late heterobimetallics
5. D. A. Dowden , Catalysis, eds. C. Kemball and D. A. Dowden, Specialist Periodical Report, The Chemical Society, London, 1978, vol. 2, p. 1;