N. Cleavitt, J. Battles, J. Sciascia, J. Shreiner, T. Fahey, S. M. Salom, E. Johnson, R. A. Evans, E. Pehek, T. C. Tigner, R. C. Reardon, A. Ambler,
Potential impacts of hemlock woolly adelgid (Adelges tsugae) on eastern hemlock (Tsuga canadensis) ecosystems. Proceedings of the first hemlock woolly adelgid review. Charlottesville, Virginia, USA. 12 October 1995.. pp. 42- 57 ,(1996)