By Eisenbeiß Gerd   in GAIA - Ecological Perspectives for Science and Society

ISSN:0940-5550|21|4|288-289

oekom verlag‎(2012)‎

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By Eisenbeiß Gerd   Goetzberger Adolf   in GAIA - Ecological Perspectives for Science and Society

ISSN:0940-5550|20|4|236-242

oekom verlag‎(2011)‎

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