id	domain	url
fueconorg-4261	doi.org	https://doi.org/10.22190/fueo1804379r
fueconorg-4261	www.crh.com	https://www.crh.com/sustainability
fueconorg-4261	www.ksh.hu	https://www.ksh.hu/apps/shop.kiadvany?p_kiadvany_id=21188&p_lang=en
fueconorg-4261	www.lafargeholcim.com	https://www.lafargeholcim.com
fueconorg-4261	www.insse.ro	http://www.insse.ro/cms/en/content/statistical-yearbooks-romania
fueconorg-4261	www.nsi.bg	http://www.nsi.bg/sites/default/files/files/publications/god2017.pdf
fueconorg-4261	www.stat.gov.rs	http://www.stat.gov.rs/en-us/publikacije
fueconorg-4261	www.titan.gr	http://www.titan.gr/en/corporatesocial-responsibility/csr-and-sustainability-report