id	domain	url
fueconorg-4397	doi.org	https://doi.org/10.22190/fueo1901089j
fueconorg-4397	www.spratings.com	www.spratings.com)
fueconorg-4397	www.moodys.com	https://www.moodys.com/pages/amr002002.aspx)
fueconorg-4397	www.fitchratings.com	https://www.fitchratings.com/site/definitions
fueconorg-4397	pcaobus.org	http://pcaobus.org/news/speech/06212011_