Georges Winkenbach and David H. Salesin.
Rendering Parametric Surfaces in Pen and Ink.
In In Proceedings of ACM SIGGRAPH 1996, ACM Press / ACM SIGGRAPH, pp. pp. 469--476, 1996.

Bibtex:

@InProceedings{ winkenbach:1996:RSPI,
  author = 	"Georges Winkenbach and David H. Salesin",
  title = 	"Rendering Parametric Surfaces in Pen and Ink",
  booktitle = 	"In Proceedings of ACM SIGGRAPH 1996",
  publisher = 	"ACM Press / ACM SIGGRAPH",
  address = 	"New York",
  series = 	"Computer Graphics Proceedings, Annual Conference
                  Series",
  pages = 	"pp. 469--476",
  year = 	"1996",
}

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