“Harmonia axyridis (Coleoptera: Coccinellidae) in Serbia: its presence on aphid-infested plants and co-occurrence with native aphidophagous coccinellids: Harmonia axyridis in Serbia”, Pestic. Phytomed., vol. 35, no. 3, pp. 145–159, Mar. 2021, doi: 10.2298//PIF2003145J.