@book{899,
	author = {Varnelis, Kazys},
	title = {Sustainability},
	publisher = {UrbanNext,},
	year = {April 1, 2017.},
	note = {Actar, Concept, Energy and sustainability, Kazys Varnelis, Politics and economics, Robert Sumrell, Urban Paradigms, XXL-XS},
	url = {https://urbannext.ovh/sustainability-2/}
}