Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Furniss, M. M., H. Solheim, and E. Christiansen. 1988. Mechanism of transmission of the pathogenic blue-stain fungus, Ophiostoma polonicum, by Ips typographus in Norway spruce . International Congress of Entomology, Proceedings 18:430.