Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Tomalak, M., H. E. Welch, and T. D. Galloway. 1989a. Effect of crowding on Sulphuretylenchus spp (Nematoda: Allantonematidae) in the hemocoel of their bark beetle hosts (Coleoptera: Scolytidae). Canadian Entomologist 121:821-822.