Barbara P. Buttenfield and Robert Weibel.
Visualizing the Quality of Cartographic Data.
In Proc.\ Third International Geographic Information Systems Symposium (GIS/LIS), 1988.

Bibtex:

@InProceedings{  buttenfield:1988:VQCD,
  author =       {Barbara P. Buttenfield and Robert Weibel},
  title =        {Visualizing the Quality of Cartographic Data},
  booktitle =    {Proc.\ Third International Geographic Information
                 Systems Symposium (GIS/LIS)},
  year =         {1988},
}