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URL: ejournals.ebsco ... http://ejournals.ebsco.com/direct.asp?JournalID=114926
URL: www.forestry.or ... http://www.forestry.org.au/ifa/c/c2-ifa.asp
URL: www.tandfonline ... http://www.tandfonline.com/toc/tfor20/
URL: www.tandfonline ... http://www.tandfonline.com/TFOR
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