id	domain	url
eistud-20846	dx.doi.org	http://dx.doi.org/10.5755/j01.eis.0.12.20846
eistud-20846	doi.org	https://doi.org/10.1515
eistud-20846	www.brookings.edu	http://www.brookings.edu/metro/pubs/20060313_clusters.pdf
eistud-20846	www.incontext.indiana.edu	http://www.incontext.indiana.edu/2006/march/1.asp
eistud-20846	www.amazon.com	http://www.amazon.com/handbook-research-innovation-cluster-policies
eistud-20846	www.ivorytower.se	http://www.ivorytower.se/documents/svenska_
eistud-20846	doi.org	https://doi.org/10.1787/9789264007116-en
eistud-20846	www.sis-statistica.it	http://www.sis-statistica.it/files/pdf/atti/sessione%20plenarie%202006_355-364.pdf
eistud-20846	doi.org	https://doi.org/10.1080/09654319708720381