Adriaens, T., Branquart, E. & Maes, D. 2003. The Multicoloured Asian Ladybird Harmonia axyridis Pallas (Coleoptera : Coccinellidae), a threat for native aphid predators in Belgium ? Belg. J. Zool. 133 (2) : 195-196.

Adriaens, T., Branquart, E. & Maes, D. 2003. The Multicoloured Asian Ladybird Harmonia axyridis Pallas (Coleoptera : Coccinellidae), a threat for native aphid predators in Belgium ? Belg. J. Zool. 133 (2) : 195-196.