id	domain	url
ijoeat-562	jrc.es	http://jrc.es/eurdoc/jrc83167.pdf
ijoeat-562	doi.org	https://doi.org/10.1016/j
ijoeat-562	doi.org	https://doi.org/10.1177
ijoeat-562	dx.doi.org	http://dx.doi.org/10.1787/eag-2013-en
ijoeat-562	doi.org	https://doi.org/10.1016/j
ijoeat-562	unesdoc.unesco.org	https://unesdoc.unesco.org/ark:/48223/pf0000259013/pdf/259013