GNECT:

  http://homepages.ihug.co.nz/~trmusson/gnect.html

  Tim Musson  <trmusson@ihug.co.nz>
  David Neary <dneary@eircom.net>


VELENA ENGINE:

  http://www.ce.unipr.it/~gbe/velena.html

  Giuliano Bertoletti <gbe@ce.unipr.it>