id	domain	url
flr-226	dx.doi.org	http://dx.doi.org/10.14786/flr.v4i1.226
flr-226	www.cde.ca.gov	http://www.cde.ca.gov/ta/tg/sr/documents/cstrtqgeomapr15.pdf)
flr-226	www.cde.ca.gov	http://www.cde.ca.gov/ta/tg/sr
flr-226	www.tandfonline.com	http://www.tandfonline.com/doi/pdf/10.1080/15248372.2012.725186
flr-226	www.dm.unipi.it	http://www.dm.unipi.it/~didattica
flr-226	mindmodeling.org	https://mindmodeling.org/cogsci2015/papers/0434/paper0434.pdf