@book {9783451806582, 
	title = "Luft",
	isbn = "9783451806582",
	url = "http://www.content-select.com/index.php?id=bib_view&ean=9783451806582",
	url = "https://content-select.com/de/portal/media/view/55950fee-f5c8-44cd-b24e-3810b0dd2d03",
	publisher = "Verlag Herder",
}