id	domain	url
alkej-645	doi.org	https://doi.org/10.22153/kej.2019.01.005
alkej-645	simplybearings.co.uk	https://simplybearings.co.uk/shop/files/1010
alkej-645	www.eclipsemagnetics.com	https://www.eclipsemagnetics.com/media/wy