@inproceedings{CoconuDeussenHege2006, author = {Liviu Coconu and Oliver Deussen and Hans-Christian Hege}, title = {Real-time pen-and-ink illustration of landscapes}, booktitle = {NPAR '06: Proceedings of the 3rd International Symposium on Non-photorealistic Animation and Rendering}, pages = {27 -- 35}, doi = {10.1145/1124728.1124734}, year = {2006}, }