Tara C. Callaghan.
  <b>Dimensional Interaction of Hue and Brightness in Preattentive
  Field Segregation</b>.
  <i>Perception and Psychopysics</i>, 36(1):25-34, 1984.
  <A HREF="http://vis.cs.brown.edu/results/bibtex/Callaghan-1984-DIH.bib">(bibtex:
  Callaghan-1984-DIH)</A>.<br />