id	domain	url
gp-55	creativecommons.org	https://creativecommons.org/licenses/by-sa/4.0
gp-55	creativecommons.org	https://creativecommons.org/licenses/by-sa/4.0
gp-55	creativecommons.org	https://creativecommons.org/licenses/by-sa/4.0
gp-55	doi.org	https://doi.org/10.2307/258557
gp-55	doi.org	https://doi.org/10.1007/s40489-014-0020-y
gp-55	doi.org	https://doi.org/10.15392/bjrs.v10i2.1802
gp-55	doi.org	https://doi.org/10.3390/su11051319
gp-55	doi.org	https://doi.org/https://doi.org/10.1016/j.hrmr.2019.100708