@book{ title = "Niklas Luhmann", author = "Horster, Detlef,Luhmann, Niklas", year = "1997", publisher = "Beck", address = "München", edition = "Orig.-Ausg.", language = "ger", howpublished = "print", isbn = "3406389376", note = "9783406389375", keywords = "Luhmann, Niklas,Social systems,System theory,Systemtheorie,Luhmann,Niklas,Literaturverzeichnis/Bibliographie,bibliography", pages = "18 cm", note = "Bibliographie N. Luhmann und Literaturverz. S. 200 - 212", series = "Array, 538", content = "Verlag", "Inhaltsverzeichnis", "Verlag", "Kostenfrei", "Inhaltsverzeichnis", "Kostenfrei", }