Mathis Wackernagel
Redefining Progress.
Analysis document/working paper/article
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	Eating up the earth: How sustainable food systems shrink our ecological footprint Diana Deumling, Mathis Wackernagel, Chad Monfreda, Juli 2003 
Redefining Progress.
Eating up the earth: How sustainable food systems shrink our ecological footprint
Diana Deumling, Mathis Wackernagel, Chad Monfreda, Juli 2003