Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Lieutier, F. 1979b. Le parasitisme d'Ips sexdentatus (Coleoptera: Scolytidae) par Contortylenchus diplogaster (Nematoda: Allantonematidae) . Revue de Nematologie 2:143-151.