1. Andrassy, A., 1976, “Evolution as a Basis for the Systematization of Nematodes,” Pitman, London.
2. Bakkers, J. and Gommers, F.J., 1982, Differentiation of the potato cyst nematodes Globodera rostochiensis and Globodera pallida and of two Globodera rostochiensis pathotypes by means of two dimensional electrophoresis, Proc. of Koninklijke Nederl. Akad. Wetenschappen, Ser.C, 85: 309.
3. Baldwin, J.G., 1983, Fine structure of body wall cuticle of females of Meloidodera charis, Atalodera lonioerae and Sarisodera hydrophila (Heteroderidae), J.Nematol., 15: 370.
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 emended diagnosis of Sarisodera Wouts and Sher, 1971 (Heteroderidae), J.Nematol., 17: 187.
5. Barratt, J.A., 1983, Plant-fungus symbioses, Sinauer Associates “Coevolution,” D.J. Futuyma and M. Slatkin, eds., Sinauer Associates, Sunderland, MA.