@book {9783035509991, 
	title = "Die Qualität der Schweizer Gymnasien",
	author = "Oelkers, Jürgen",
	isbn = "9783035509991",
	year = "2008",
	edition = "1",
	keywords = "Gymnasiale Bildung, Forschungsresultate, Hoch entwickeltes System",
	url = "http://www.content-select.com/index.php?id=bib_view&ean=9783035509991",
	url = "https://content-select.com/de/portal/media/view/5966640c-cda0-4e17-a4cf-6933b0dd2d03",
	publisher = "hep verlag",
	language = "ger",
}