1. Carpenter J.M., 1987. — Phylogenetic relationships and classification of the Vespinae (Hymenoptera: Vespidae).Syst. Ent. (In press).
2. Farris J.S., 1972. — Estimating phylogenetic trees from distance matrices.Am. Nat., 106, 645–668.
3. Farris J.S., 1981. — Distance data in phylogenetic analysis. InAdvances in Cladistics. Proceedings of the first meeting of the Willi Hennig Society. Ed. V.A. Funk, D.R. Brooks, pp. 3–23. New York Bot. Gard., Bronx.
4. Farris J.S., 1983. — The logical basis of phylogenetic analysis. InAdvances in Cladistics 2. Proccedings of the second meeting of the Willi Hennig Society. Ed. N.I. Platnick, V.A. Funk, pp. 7–36. Columbia Univ. Press, New York.
5. Farris J.S., 1985. — Distance data revisited.Cladistics, 1, 67–85.