id	domain	url
gs-3550	doi.org	https://doi.org/10.52340/gs.2025.07.02.15
gs-3550	www.unwto.org	https://www.unwto.org/tourism-and-the-sdgs
gs-3550	www.hslu.ch	https://www.hslu.ch/de-ch/wirtschaft/studium/master/nachhaltigertourismus
gs-3550	www.uio.no	https://www.uio.no/studier/emner/sv/iss/geog4310
gs-3550	www.bmaw.gv.at	https://www.bmaw.gv.at