id	domain	url
ger-342	www.oecd.org	http://www.oecd.org/officialdocuments/publicdis
ger-342	dx.doi.org	http://dx.doi.org/10.1257/jep.27.2.109
ger-342	dx.doi.org	http://dx.doi.org/10.1006/jecp.2000.2561
ger-342	dx.doi.org	http://dx.doi.org/10.1353/jhr.2010.0029
ger-342	dx.doi.org	http://dx.doi.org/10.1080/09243453.2015.1112815
ger-342	ecec-care.org	http://ecec-care.org/resources/publications
ger-342	dx.doi.org	http://dx.doi.org/10.1787/9789264258495-en
ger-342	dx.doi.org	http://dx.doi.org/10.1207/s1532480xads09032
ger-342	ies.ed.gov	http://ies.ed.gov/ncer/pubs/20082009/pdf/2008
ger-342	dx.doi.org	http://dx.doi.org/10.1007/978-3531-91452-712
ger-342	www.ioe.ac.uk	http://www.ioe.ac.uk/research_home/16educational-developmental-outcomes-rr.pdf
ger-342	files.eric.ed.gov	http://files.eric.ed.gov/fulltext/ed507845.pdf