document.write('<b>Nardi, F., Spinsanti, G., Boore, J.L., Carapelli, A., Dallai, R. et Frati, F.</b> 2003.  <a href="http://www.unisi.it/ricerca/dip/bio_evol/reprint-1.htm " target="_top">Hexapod Origins: Monophyletic or Paraphyletic? [Collembola included], Science, Volume 299, 21 March 2003, p.1887-1889.</a>');