@journal {10.17437/NDV2106, 
	title = "NDV - Nachrichtendienst 06/2021",
	journal = "NDV - Nachrichtendienst",
	ISSN = "0012-1185",
	year = "2021",
	number = "6",
	doi = "10.17437/NDV2106",
	url = "https://content-select.com/index.php?id=bib_view&doi=10.17437%2FNDV2106",
	publisher = "Lambertus Verlag",
	language = "",
}