@article {10.3262/TUP1406422b, 
	author = "Then, Volker",
	title = "Wirkungsmessung in der freien Wohlfahrt",
	journal = "TUP - Theorie und Praxis der Sozialen Arbeit",
	ISSN = "0342-2275",
	year = "2014",
	number = "06",
	pages = "422-428",
	doi = "10.3262/TUP1406422b",
	url = "https://content-select.com/index.php?id=bib_view&doi=10.3262%2FTUP1406422b",
	publisher = "Beltz Juventa",
	language = "",
}