@book{6591,
	author = {GSMA (Organization)‏},
	title = {Supporting Innovation in Digital Urban Services},
	publisher = {GSM Association,},
	year = {May 2021},
	address = {London :},
	url = {https://www.gsma.com/mobilefordevelopment/wp-content/uploads/2021/05/U_Innovation21_WEB_Single_OK1.pdf},
}