Martinuzzi, S, Vierling, L A, Gould, W A, Falkowski, M J, Evans, J S, Hudak, A T, and Vierling, K T, 2009, Mapping snags and understory shrubs for a LiDAR-based assessment of wildlife habitat suitability: Remote Sensing of Environment, v. 113, iss. 12, 2533–2546 p.