Penny Rheingans and Chris Landreth.
Perceptual Principles for Effective Visualization.
In Georges Grinstein and Haim Levkowitz (Eds.), Perceptual Issues in Visualization, Springer-Verlag, pp. 59--74, 1995.

Bibtex:

@InCollection{ 	rheingans:1995:PPEV,
  author = 	"Penny Rheingans and Chris Landreth",
  editor = 	"Georges Grinstein and Haim Levkowitz",
  title = 	"Perceptual Principles for Effective Visualization",
  booktitle = 	"Perceptual Issues in Visualization",
  publisher = 	"Springer-Verlag",
  pages = 	"59--74",
  year = 	"1995",
}