1. Airborne laser scanning – Present status and future expectations;Ackermann;ISPRS Journal of Photogrammetry and Remote Sensing,1999
2. Adamson, H., & Gardner, S. (2003). Soil erosion – Cause, consequences and prevention. Report of a workshop held at the United Utilities Office, Thirlmere, Lake District.
3. The upland management handbook;Backshall,2001
4. Airborne laser scanning: Existing systems and firms and other resources;Baltsavias;ISPRS Journal of Photogrammetry and Remote Sensing,1999
5. New light on an ancient landscape: Lidar survey in the Stonehenge World Heritage Site;Bewley;Antiquity,2005