@book {9783946017479, 
	title = "Serendipity und Planen",
	isbn = "9783946017479",
	url = "http://www.content-select.com/index.php?id=bib_view&ean=9783946017479",
	url = "https://content-select.com/de/portal/media/view/63f9d716-78b8-4968-9f8d-4084ac1b000f",
	publisher = "UVW Webler",
}