P. CABALLERO, R. MURILLO, D. MUÑOZ, and T. WILLIAMS, “The nucleopolyhedrovirus of Spodoptera exigua (Lepidoptera: Noctuidae) as a biopesticide: analysis of recent advances in Spain”, Rev. Colomb. Entomol., vol. 35, no. 2, pp. 105–115, Dec. 2009.