id	domain	url
dem-18610	www.dem.umk.pl	http://www.dem.umk.pl/dem
dem-18610	dx.doi.org	http://dx.doi.org/10.12775/dem.2018.006
dem-18610	dx.doi.org	http://dx.doi.org/10.1016/j.jmoneco.2013.04.009
dem-18610	dx.doi.org	http://dx.doi.org/10.1016/j.ejpoleco.2013.08.004
dem-18610	dx.doi.org	http://dx.doi.org/10.1016/j.jimonfin.2016.03.003
dem-18610	dx.doi.org	http://dx.doi.org/10.1515/cer-2016-0005