1. Identification in situ and phylogeny of uncultured bacterial endosymbionts
2. Phylogeny of symbiotic bacteria of four weevil species (Coleoptera: Curculionidae) based on analysis of 165 ribosomal DNA. Insect Biochem. molec;Campbell B. C.;Biol.,1992
3. Carpenter F. M. 1992 Superclass Hexapoda. In Treatise on invertebrate paleontology (ed. R. L. Kaesler) part R Arthropoda 4. Boulder: Geological Society of America.
4. Dasch G. A. 1975 Morphological and molecular studies on intracellular bacterial symbiotes of insects. Unpublished Ph.D. thesis Yale University.
5. Dasch G. A. Weiss E. & Chang K.-P. 1984 Endosymbionts of insects. In manual of systematic bacteriology vol. 1 (ed. N. R. Krieg & J. G. Holt) pp.