P.T. Saunders.
  <i><b>Collected Works of A. M. Turing: Morphogenesis</b></i>.
  North-Holland, 1992.
  <A HREF="http://vis.cs.brown.edu/results/bibtex/Saunders-1992-MOR.bib">(bibtex:
  Saunders-1992-MOR)</A>.<br />