@Article{ cit:zimmermann2010HauSmu,
	title = "Der Hauptsatz der Smullyanmengen",
	author = "Zimmermann, Alexander",
	journal = "Kriterion -- Journal of Philosophy",
	pages = "24--43",
	volume = "23",
	number = "1",
	year = "2010",
	issn = "10198288",
}