@book {9783593421643, 
	title = "Hart, aber unfair",
	author = "Weidner, Jens",
	isbn = "9783593421643",
	year = "2013",
	edition = "1",
	keywords = "Kommunikation, Verhandeln, Aggressionen, Arbeitswelt, Kollegen, Peperonie, Aggro, Schlagabtausch, Ellenbogen, Streit, Team, Durchsetzen, Argumentation",
	url = "http://www.content-select.com/index.php?id=bib_view&ean=9783593421643",
	url = "https://content-select.com/de/portal/media/view/5305e024-8ce0-43be-8859-7d8f2efc1343",
	publisher = "Campus Frankfurt / New York",
	language = "ger",
}