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Indigenous tourism development in the Arctic
Notzke, Claudia, (1998)
Ecotourism : understanding the competing expert and academic definitions
Rahemtulla, Yasmin Gillian, (2001)
Motivations and normative evaluations of summer visitors at an alpine ski area
Needham, Mark D., (2011)
Are sustainable tourists a higher spending market?
Nickerson, Norma Polovitz, (2016)
Measuring Geotourism: Developing and Testing the Geotraveler Tendency Scale (GTS)
Boley, B. Bynum, (2011)
Geotourism and sustainability as a business mindset
Jorgenson, Jake, (2016)