id	domain	url
easat-3999	creativecommons.org	https://creativecommons.org/licenses/by/4.0/)
easat-3999	doi.org	https://doi.org/10.5040/9781474284707
easat-3999	doi.org	https://doi.org/10.14746/pea.2017.1.3
easat-3999	papers.ssrn.com	https://papers.ssrn.com/sol3/papers.cfm?abstract_id=4536191
easat-3999	papers.ssrn.com	https://papers.ssrn.com/sol3/papers.cfm?abstract_id=4970532
easat-3999	papers.ssrn.com	https://papers.ssrn.com/sol3/papers.cfm?abstract_id=4939997
easat-3999	doi.org	https://doi.org/10.1017/cbo9780511487361
easat-3999	doi.org	https://doi.org/10.1016/j.shpsb.2006.10.001
easat-3999	doi.org	https://doi.org/10.2298/theo2302195k
easat-3999	creativecommons.org	https://creativecommons.org/licenses/by/4.0