@book{535887,
	title = {The impact evaluation of the London Homelessness Social Impact Bond},
	publisher = {Department for Communities and Local Government},
	year = {2017},
	address = {Londres},
	url = {https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/658881/SIB_Impact_evaluation_report.pdf}
}