[1]
D. G. Stavridis, C. G. Ipsilandis, P. C. Katarachias, P. G. Milonas, A. A. Ifoulis, and M. Savopoulou-Soultani, “Determination of Helicoverpa armigera (Lepidoptera: Noctuidae) larval instars and age based on head capsule width and larval weight”, EH, vol. 15, pp. 53–61, Jan. 2004.