Dorwart, Catherine Elisabeth, Roger L. Moore, and Yu-Fai Leung. "Visitors' Perceptions of a Trail Environment and Effects on Experiences: A Model for Nature-Based Recreation Experiences." Leisure Sciences 32, no. 1 (2010): 33-54.

Dorwart, Catherine Elisabeth, Roger L. Moore, and Yu-Fai Leung. "Visitor Employed Photography: Its Potential and Use in Evaluting Visitors' Perceptions of Resource Impacts in Trail and Park Settings." In Proceedings of the 2006 Northeastern Recreation Research Symposium: 2006 April 9-11: Bolton Landing, NY. Ge. Tech. Rep. NRS-P-14, edited by R. Burns and K. Robinson, 307-315. Newton Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station, 2007.

Leung, Yu-Fai, and Jeffrey L. Marion. "Assessing Trail Conditions in Protected Areas: Application of a Problem-Assessment Method in Great Smoky Mountains National Park, USA." Environmental Conservation 26, no. 4 (1999): 270-279.

Leung, Yu-Fai, and Jeffrey L. Marion. "Characterizing Backcountry Camping Impacts in Great Smoky Mountains National Park, USA." Journal of Environmental Management 57, no. 3 (1999): 193-203.

Leung, Yu-Fai, and Jeffrey L. Marion. "The Influence of Sampling Interval on the Accuracy of Trail Impact Assessment." Landscape and Urban Planning 43, no. 4 (1999): 167-179.

Marion, Jeffrey L., and Yu-Fai Leung. An Assessment of Campsite Conditions in Great Smoky Mountains National Park In Research/Resources Management Report. U. S. Department of the Interior, National Park Service , 1997.