1. Brown, P.M.J., Thomas, C., Lombaert, E., Jeffries, D.L., Estoup, A., and Lawson Handley, L.J., The global spread of Harmonia axyridis: Distribution, dispersal and routes of invasion, BioControl, 2011, vol. 56, no. 4, pp. 623–642.
2. Bukejs, A. and Telnov, D., The first record of the invasive lady beetle Harmonia axyridis (Pallas, 1773) (Coleoptera: Coccinellidae) in Turkey, Zool. Ecol., 2015, vol. 25, no. 1, pp. 59–62.
3. Chapin, J.B. and Brou, V.A., Harmonia axyridis (Pallas), the third species of the genus to be found in the United States (Coleoptera: Coccinellidae), Proc. Entomol. Soc. Washington, 1991, vol. 93, pp. 630–635.
4. Emets, V.M., Detection of ladybird Harmonia axyridis (Coleoptera: Coccinellidae) in Voronezhsky Reserve, Voronezh oblast of Russia, Russ. J. Biol. Invasions, 2018, vol. 9, pp. 119–122.
5. EPPO 2018. PQR-EPPO Database on Quarantine Pests. http://www.eppo.int/DATABASES/pqr/pqr.htm.