@book {9783709401620, 
	title = "Der Erfolgs-Navigator",
	author = "Tracy, Brian AND Enkelmann, Nikolaus",
	isbn = "9783709401620",
	keywords = "Erfolg, Rethorik, Selbstvertrauen, Ziele, Leitfaden, Selbstdisziplin, Orientierung, Erfolgstraining",
	url = "http://www.content-select.com/index.php?id=bib_view&ean=9783709401620",
	url = "https://content-select.com/de/portal/media/view/519cc54f-539c-46c5-bfdc-29105dbbeaba",
	publisher = "Linde Verlag",
}