id	domain	url
cet-2444	www.aidic.it	www.aidic.it/cet
cet-2444	www.un-documents.net	http://www.un-documents.net/our-common-future.pdf
cet-2444	repository.up.ac.za	https://repository.up.ac.za/dspace/bitstream/handle/2263/16349/gee_influence(2010).pdf?sequence=1&is
cet-2444	bauendigital.ch	https://bauendigital.ch/assets/medienmitteilung/1603-nbs-international-bim-report.pdf