id	domain	url
flr-154	dx.doi.org	http://dx.doi.org/10.14786/flr.v3i2.154
flr-154	dx.doi.org	http://dx.doi.org/10.1016/j.paid.2014.11.044
flr-154	dx.doi.org	http://dx.doi.org/10.1016/j.learninstruc.2013.09.005