@book {9783518754238, 
	title = "Systemtheorie der Gesellschaft",
	author = "Luhmann, Niklas",
	editor = "Kieserling, André AND Schmidt, Johannes F. K.",
	isbn = "9783518754238",
	year = "2017",
	edition = "1",
	url = "http://www.content-select.com/index.php?id=bib_view&ean=9783518754238",
	url = "https://content-select.com/de/portal/media/view/5a96ee33-c728-467e-8ecd-376cb0dd2d03",
	publisher = "Suhrkamp Verlag",
	language = "ger",
}