id	domain	url
flr-380	doi.org	https://doi.org/10.14786/flr.v6i3.38
flr-380	jyx.jyu.fi	https://jyx.jyu.fi/dspace/handle/123456789/20910
flr-380	icmpc-escom2012.web.auth.gr	http://icmpc-escom2012.web.auth.gr/sites/default/files/papers/792_proc.pdf