James E. Gain, Patrick Marais, Wolfgang Straßer. Terrain sketching. In Eric Haines, Morgan McGuire, Daniel G. Aliaga, Manuel M. Oliveira, Stephen N. Spencer, editors, Proceedings of the 2009 Symposium on Interactive 3D Graphics, SI3D 2009, February 27 - March 1, 2009, Boston, Massachusetts, USA. pages 31-38, ACM, 2009. [doi]
Abstract is missing.