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cye-4761	www.jstor.org	http://www.jstor.org/action/showpublication?journalcode=chilyoutenvi
cye-4761	www.jstor.org	http://www.jstor.org/action/showpublication?journalcode=chilyoutenvi
cye-4761	www.hbsc.org	http://www.hbsc.org/
cye-4761	www.hbsc.org	http://www.hbsc.org
cye-4761	dx.doi.org	https://dx.doi.org
cye-4761	dx.do.org	https://dx.do.org/10.3390/ijerph120606423
cye-4761	dx.doi.org	https://dx.doi.org/10.1186/1471-2458-11-680
cye-4761	dx.doi.org	https://dx.doi.org/10.1080/09687599.2012.692026
cye-4761	www.gov.scot	http://www.gov.scot/resource/0048/00488145.pdf
cye-4761	dx.doi.org	https://dx.doi.org/%2010.1016/j.sbspro.2014.08.079
cye-4761	dx.doi.org	https://dx.doi.org/10.1186/1471-2458-11-680
cye-4761	doi.org	https://doi.org/10.1080/09687599.2012.692026
cye-4761	www.gov.scot	http://www.gov.scot/resource/0048/00488145.pdf
cye-4761	projects.ncsu.edu	https://projects.ncsu.edu/design/cud/about_ud/udprinciplestext.htm
cye-4761	dx.doi.org	https://dx.doi.org/10.1123/jpah.6.6.805
cye-4761	www.dcs	http://webarchive.nationalarchives.gov.uk/20080728102018/http://www.dcs
cye-4761	www.jstor.org	http://www.jstor.org/action/showpublication?journalcode=chilyoutenvi
cye-4761	dx.doi.org	https://dx.doi.org/10.1111/j.1099-0860.2007.00139.x
cye-4761	projects.ncsu.edu	https://projects.ncsu.edu/design/cud/about_ud/udprinciplestext.htm
cye-4761	dx.doi.org	https://dx.doi.org/10.1123/jpah.6.6.805
cye-4761	webarchive.nationalarchives.gov.uk	http://webarchive.nationalarchives.gov.uk/20080728102018/http:/www.dcsf.gov.uk/publications/fairplay/downloads/7567-dcfs-fair%20play.pdf
cye-4761	webarchive.nationalarchives.gov.uk	http://webarchive.nationalarchives.gov.uk/20080728102018/http:/www.dcsf.gov.uk/publications/fairplay/downloads/7567-dcfs-fair%20play.pdf
cye-4761	www.jstor.org	http://www.jstor.org/action/showpublication?journalcode=chilyoutenvi
cye-4761	dx.doi.org	https://dx.doi.org/10.1111/j.1099-0860.2007.00139.x
cye-4761	www.euro.who.int	http://www.euro.who.int/en/health-topics/life-stages/child-and-adolescenthealth/health-behaviour-in-school-aged-children-hbsc/about-hbsc
cye-4761	dx.doi.org	https://dx.doi.org/10.1080/02614367.2011.589864
cye-4761	dx.doi.org	https://dx.doi.org/10.1177/0308022616664540
cye-4761	gov.wales	https://gov.wales/dcells/publications/policy_strategy_and_planning/earlywales/playpolicy/playpolicye.pdf?lang=en
cye-4761	dx.doi.org	https://dx.doi.org/10.3109/11038128.2015.1049549
cye-4761	dx.doi.org	https://dx.doi.org/10.1080/14427591.2017.1377105
cye-4761	dx.doi.org	https://dx.doi.org/10.3109/11038128.2015.1049549
cye-4761	dx.doi.org	https://dx.doi.org/10.1080/14427591.2017.1377105
cye-4761	www.executiveofficeni.gov.uk	https://www.executiveofficeni.gov.uk/sites/default/files/publications/ofmdfm_dev/play-and-leisurepolicy-statement.pdf
cye-4761	dx.doi.org	https://dx.doi.org/10.1080/04419057.2012.702456
cye-4761	dx.doi.org	https://dx.doi.org/10.1111/j.1467-8624.1998.tb06226.x
cye-4761	dx.doi.org	https://dx.doi.org/10.1007/s10900-0089104-x
cye-4761	dx.doi.org	https://dx.doi.org/10.1002/oti.230
cye-4761	www.jstor.org	http://www.jstor.org/action/showpublication?journalcode=chilyoutenvi
cye-4761	dx.doi.org	https://dx.doi.org/10.1080/110381299443645
cye-4761	www.gov.scot	http://www.gov.scot/resource/0042/00425722.pdf
cye-4761	dx.doi.org	https://dx.doi.org/10.1080/04419057.2012.702456
cye-4761	dx.doi.org	https://dx.doi.org/10.1007/s10900-008-9104-x
cye-4761	dx.doi.org	https://dx.doi.org/10.1007/s10900-008-9104-x
cye-4761	dx.doi.org	https://dx.doi.org/10.1002/oti.230
cye-4761	www.jstor.org	http://www.jstor.org/action/showpublication?journalcode=chilyoutenvi
cye-4761	dx.doi.org	https://dx.doi.org/10.1080/110381299443645
cye-4761	www.gov.scot	http://www.gov.scot/resource/0042/00425722.pdf
cye-4761	dx.doi.org	https://dx.doi.org/10.1080/13502930285208821
cye-4761	www.playwales.org.uk	http://www.playwales.org.uk/login/uploaded/documents/play%20sufficiency
cye-4761	dx.doi.org	https://dx.doi.org/10.1111/j.1099-0860.2012.00464.x
cye-4761	dx.doi.org	https://dx.doi.org/10.1080/01426397.2011.640432
cye-4761	dx.doi.org	https://dx.doi.org/10.1080/14733281003650984
cye-4761	dx.doi.org	https://dx.doi.org/10.1080/13502930285208821
cye-4761	dx.doi.org	https://dx.doi.org/10.1080/13502930285208821
cye-4761	dx.doi.org	https://dx.doi.org/10.1111/j.1099-0860.2012.00464.x
cye-4761	dx.doi.org	https://dx.doi.org/10.1080/01426397.2011.640432
cye-4761	dx.doi.org	https://dx.doi.org/10.1080/14733281003650984