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2. Carter, N. ; Sotherton, N. W. , 1983: The role of polyphagous predators in the control of cereal aphids. 10th Intern. Congr. Plant Protection 1983, p. 778.
3. The dispersal and distribution of Polyphagous predatory Coleoptera in cereals;Coombes;Ann. app. Biol.,1986
4. The effects of polyphagous predators on the establishment phase of Bird-cherry Oat Aphid (Rhopalosiphum padi L.) infestations in spring barley;Chiverton;Växtskyddsrapporter, Jordbruk,1982