@book {9783791038919, 
	title = "Projektmanagement nach DIN ISO 21500:2016-02",
	author = "Benkhofer, Sebastian AND Esswein, Werner AND Hülsbeck, Marcel AND Krippendorff, Tobias AND Liebens, Peter AND Mandel, Claudius",
	isbn = "9783791038919",
	year = "2019",
	keywords = "Projektmanagement, Projektportfolio, DIN ISO 21500, Projektmanagementstandard, Esswein, Hülsbeck, Benkhofer, Krippendorff, Liebens, Mandel",
	url = "http://www.content-select.com/index.php?id=bib_view&ean=9783791038919",
	url = "https://content-select.com/de/portal/media/view/5aa42182-7b80-46e4-9280-27c2b0dd2d03",
	publisher = "Schäffer-Poeschel",
	language = "ger",
}