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O. Heikinheimo, “<i>Nasonovia</i> (<i>Kakimia</i>) <i>saxifragae</i> (Doncaster & Stroyan) (Homoptera, Aphidoidea) found in northern Fennoscandia”, Entomol. Fennica, vol. 1, no. 2, pp. 99–101, Jun. 1990.