1. Anderson, D. S. (1966) The developmental anatomy and histology of the reproductive system in Acridoidea. Ph. D. thesis (London).
2. Delphin, F. (1963a) Studies in the neurosecretion in Schistocerca gregaria (Forskål) (Orthoptera: Acrididae). Ph. D. thesis (London).
3. Histology and possible functions of neurosecretory cells in the ventral ganglia of Schistocerca gregaria (Forskål);Delphin;Nature (London),1963
4. Parthenogenesis as a form of adaptation in short-horned grasshoppers (Orthoptera, Acrididae) (based on the example of Chorthippus apricarius L.);Guseva;Entomol. Rev.,1990
5. Parthenogenesis in the Desert Locust (Schistocerca gregaria Forsk.) and its possible effect on the maintenance of the species;Hamilton;Proc. R. Entomol. Soc. (London) (A),1955