1. Aruga, K, Sessions, J, Akay, A and Chung, W. 2004. Optimizing horizontal and vertical alignments of forest roads using a high resolution DEM. Paper presented at: Joint Conference of IUFRO 3.06 Forest Operations under Mountainous Conditions and the 12th International Mountain Logging Conference. 2004, Vancouver, BC, Canada.
2. Application of an airborne laser scanner to forest road design with accurate earthwork volumes
3. Chung, W and Sessions, J. 2001. NETWORK 2001 – transportation planning under multiple objectives. Paper presented at: International Mountain Logging and 11th Pacific Northwest Skyline Symposium 2001. 2001, Seattle, WA, USA.