id	domain	url
flr-309	doi-org.helios.uta.fi	https://doi-org.helios.uta.fi/10.2190/g7m1-2734-3jrr-8033
flr-309	www.oph.fi	http://www.oph.fi/english/current_issues/101/0/what_is_going_on_in_finland_curriculum_reform_2016
flr-309	www.socialstudies.org	https://www.socialstudies.org/publications/socialeducation/november-december2008/geography-the-essential-skill-for-the-21st-century
flr-309	pdfs.semanticscholar.org	https://pdfs.semanticscholar.org/ea96/b628f440642d72026c14710a67ccd06f41f1.pdf
flr-309	doi.org	http://doi.org/10.1007/s10648-004-0006-x
flr-309	www.jstor.org	http://www.jstor.org/stable/1466822