id	domain	url
esrj-62552	dx.doi.org	http://dx.doi.org/10.15446/esrj.v22n1.62552
esrj-62552	dx.doi.org	http://dx.doi.org/10.15446/esrj.v22n1.62552
esrj-62552	en.wikipedia.org	http://en.wikipedia.org/wiki/satellite_navigation
esrj-62552	en.wikipedia.org	http://en.wikipedia.org/wiki/satellite_navigation/