2007 conference paper
Visitor employed photography (VEP): An examination of its potential and use in evaluating visitors' perceptions of resource impacts in trail and park settings (General technical report, NRS-P-14)
Proceedings of the 2006 Northeastern Recreation Research Symposium, April 9-11, 2006, the Sagamore, 307–315. Newtown Square, PA: U.S. Department of Agriculture, Forest Service Northern Research Station.
2004 journal article
Managing visitors' perceptions
Parks & Recreation, 39(5), 24–31.