S. Civolani, E. Previati, R. Peretto, E. Pasqualini, and M. Leis, “Preliminary Investigation on the Toxicity of Different Formulations on Some Groups of Beneficial Arthropods in Emilia-Romagna Orchards”, Ital J Agronomy, vol. 2, no. 2, pp. 157–162, Jun. 2007.