@book{4881,
	author = {Organización de Cooperación y Desarrollo Económico},
	title = {Online advertising },
	publisher = {OECD Publishing,},
	year = {January 2019},
	series = {OECD Digital Economy Papers ;},
	address = {Paris:},
	url = {https://doi.org/10.1787/1f42c85d-en},
}