@book {9783960061472, 
	title = "Nachhaltigkeit verstehen",
	author = "Grunwald, Armin",
	isbn = "9783960061472",
	url = "http://www.content-select.com/index.php?id=bib_view&ean=9783960061472",
	url = "https://content-select.com/de/portal/media/view/58ad6e0e-b590-407e-8438-1563b0dd2d03",
	publisher = "oekom verlag",
}