Allegheny National Forest (PA)
- Aerial Photographs Allegheny Forest Tornado Damage Color IR. 1988
- Catastrophic disturbance, patch dynamics and recovery in old-growth forests. Proposal to NSF. 1989
- Tornado damage in the Allegeny National Forest (PA), 5/31/85. 1989
- Tornado damage to old-growth forests in the Tionesta Scenic Area. 1988-1990