id	domain	url
esrj-49127	dx.doi.org	http://dx.doi.org/10.15446/esrj.v19n2.49127
esrj-49127	dx.doi.org	http://dx.doi.org/10.15446/esrj.v19n2.49127
esrj-49127	rockeng.utoronto.ca	http://rockeng.utoronto.ca