Anne Sutter, George Sperling, and Charles Chubb.
  <b>Measuring the Spatial Frequency Selectivity of Second-order
  Texture Mechanisms</b>.
  <i>Vision Research</i>, 35(7):915-924, April 1995.
  <A HREF="http://vis.cs.brown.edu/docs/pdf/bib/g/Sutter-1995-MSF.pdf.html">(pdf)</A>
  <A HREF="http://vis.cs.brown.edu/results/bibtex/Sutter-1995-MSF.bib">(bibtex:
  Sutter-1995-MSF)</A>.<br />