1. Bakker, J. and Bouwman-Smits, L. (1988) Contrasting rates of protein and morphological evolution in cyst nematode species. Phytopathology, 78, 900–4.
2. Baldwin, J. G. (1986) Testing hypotheses of phylogeny of Heteroderidae, in Cyst Nematodes (eds F. Lamberti and C. E. Taylor), Plenum, New York, USA, pp. 75–100.
3. Baldwin, J. G. (1992) Evolution of cyst and noncyst-forming Heteroderidae. Annual Review Phytopathology, 30, 271–90.
4. Baldwin, J. G. and Bell, A. H. (1985) Cactodera eremica n.sp., Afenestrata africana (Luc et al., 1973) n. gen., n. comb., and an amended diagnosis of Sarisodera Wouts and Sher, 1971 (Heteroderidae). Journal of Nematology, 17, 187–201.
5. Baldwin, J. G., Bernard, E. C. and Mundo-Ocampo, M. (1989) Four new species of Heteroderidae including Ekphymatodera n. gen. from California. Journal of Nematology, 21, 48–69.