id	domain	url
afs-6013	purl.umn.edu	http://purl.umn.edu/44122
afs-6013	ageconsearch.umn.edu	http://ageconsearch.umn.edu/bitstream/6315/2
afs-6013	ageconsearch.umn.edu	http://ageconsearch.umn.edu
afs-6013	www.oecd.org	http://www.oecd.org
afs-6013	www.oecd.org	http://www.oecd.org/dataoecd/18/31/41121738.pdf