Jan SIJBERS.
  <i><b>SIGNAL AND NOISE ESTIMATION FROM MAGNETIC RESONANCE
  IMAGES</b></i>.
  PhD thesis, UNIVERSITEIT ANTWERPEN, 1998.
  <A HREF="http://vis.cs.brown.edu/docs/pdf/bib/g/Sijbers-1998-SNA.pdf.html">(pdf)</A>
  <A HREF="http://vis.cs.brown.edu/results/bibtex/Sijbers-1998-SNA.bib">(bibtex:
  Sijbers-1998-SNA)</A>.<br />