By Kies Uwe   Mrosek Thorsten   Schulte Andreas   in Scandinavian Journal of Forest Research

ISSN:0282-7581|23|5|445-457

Taylor & Francis Ltd‎(2008)‎

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By Grimm Anne   Mrosek Thorsten   Martinsohn Anna   Schulte Andreas   in Environmental Education Research

ISSN:1469-5871|17|1|19-33

Routledge Ltd‎(2011)‎

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