Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Drumont, A., R. González, N. d. Windt, J.-C. Grégoire, and M. d. Proft. 1991. Controle integre d'Ips typographus (Col, Scolytidae) en Belgique [Integrated control of Ips typographus (Col, Scolytidae) in Belgium]. Parasitica 47:113-128.