@book {9783518752173, 
	title = "Henry David Thoreau",
	author = "Schäfer, Frank",
	isbn = "9783518752173",
	year = "2017",
	edition = "1",
	url = "http://www.content-select.com/index.php?id=bib_view&ean=9783518752173",
	url = "https://content-select.com/de/portal/media/view/58bd7cc2-7108-4a0a-b7b9-1a62b0dd2d03",
	publisher = "Suhrkamp Verlag",
	language = "ger",
}