@journal {10.17437/NDV2105, 
	title = "NDV - Nachrichtendienst 05/2021",
	journal = "NDV - Nachrichtendienst",
	ISSN = "0012-1185",
	year = "2021",
	number = "5",
	doi = "10.17437/NDV2105",
	url = "https://content-select.com/index.php?id=bib_view&doi=10.17437%2FNDV2105",
	publisher = "Lambertus Verlag",
	language = "",
}