id	domain	url
crl-16374	creativecommons.org	http://creativecommons.org/licenses/by-nc/3.0/
crl-16374	www.nsf.gov	www.nsf.gov/pubs/policydocs/pappguide/nsf11001/gpg_2
crl-16374	docs.lib.purdue.edu	http://docs.lib.purdue.edu/lib_research/85
crl-16374	www.istl.org	www.istl.org/09-spring/refereed2.html
crl-16374	www.istl.org	www.istl.org/12-summer/refereed1.html