1. 1993. ‘Extreme winter temperature fluctuations, sapwood injury, and oak dieback in central europe’, in (ed.), IUFRO Proceedings of the Congress on Recent Advances in Studies on Oak Decline, 13–17 September 1992, Selva di Fasano, Tipolitografia Radio-Putignano, Bari, Italy, pp 139–148.
2. , , and 1992a. New England's Forests: a Baseline for the New England Forest Health Monitoring Program, Resource Bulletin NE-123, US Department of Agriculture, Forest Service, Northeastern Forest Experiment Station, Radnor, PA, 89 pp.
3. , , , , and 1992b. Forest Health Monitoring in New England: 1990 Annual Report, Resource Bulletin NE-125, US Department of Agriculture, Forest Service, Northeastern Forest Experiment Station, Radnor, PA. 59 pp.
4. Climate research for ecological monitoring and assessment: a New England example
5. On Determining the Statistical Significance of Discontinuities with Ordered Ecological Data