@book{4689,
	author = {Organización de Cooperación y Desarrollo Económico},
	title = {Main Science and Technology Indicators Volume 2018 Issue 1},
	publisher = {OECD Publishing},
	year = {2018},
	series = {Main Science and Technology Indicators},
	address = {Paris},
	url = {https://doi.org/10.1787/2304277x},
}