id	domain	url
cet-3606	www.aidic.it	www.aidic.it/cet
cet-3606	scholarworks.umass.edu	http://scholarworks.umass.edu/soilsproceedings/vol12/iss1/3
cet-3606	abov.vucke.sk	http://abov.vucke.sk/trip/abov/abov/priroda/rieka-hornad.html