id	domain	url
cblr-2953	cowles.econ.yale.edu	http://cowles.econ.yale.edu/p/cd
cblr-2953	agecon.lib.umn.edu	http://agecon.lib.umn.edu/cgi-bin/pdf
cblr-2953	www.usdoj.gov	http://www.usdoj.gov/atr/public