id	domain	url
educationr-1546	edrev.asu.edu	http://edrev.asu.edu/reviews/revs251
educationr-1546	edrev.asu.edu	http://edrev.asu.edu/reviews/revs251
educationr-1546	www.cecies.org	http://www.cecies.org/articulo.asp?id=235