Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Reeks, W. A., and G. W. Barter. 1951. Growth reduction and mortality of spruce caused by the European spruce sawfly, Gilpinia hercyniae (Htg.) (Hymenoptera: Diprionidae). Forestry Chronicle 27(2):140-156 [reprint paged 1-16].