id	domain	url
easat-5387	creativecommons.org	https://creativecommons.org/licenses/by/4.0/)
easat-5387	doi.org	https://doi.org/10.5209/rev_unis.2013.n32.44789
easat-5387	creativecommons.org	https://creativecommons.org/licenses/by/4.0
easat-5387	doi.org	https://doi.org/10.5209/rev_unis.2013.n32.44789
easat-5387	doi.org	https://doi.org/10.4324/9780203946060.ch7
easat-5387	doi.org	https://doi.org/10.4324/9780203946060.ch7