@book{281,
	author = {Koppelkamm, Stefan},
	title = {Ortszeit, DEU},
	publisher = {UrbanNext,},
	year = {February 11, 2016.},
	note = {Middle Density, Politics and economics, Stefan Koppelkamm, Survey, Territory and mobility},
	url = {https://urbannext.ovh/ortszeit-deu/}
}