谷物 发表于 2025-3-26 22:33:55
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0179-9614the reader to decide, that our work has attained over the years enough substance in order to justify a book. The problem which we soon faced, was that the field still is moving at a fast pace, for instance because hyper sonic computation problems became more and more important.978-3-528-07634-4978-3-663-06831-0Series ISSN 0179-9614我不怕牺牲 发表于 2025-3-27 06:56:30
Albrecht Eberle,Arthur Rizzi,Ernst Heinrich Hirscheleting, and transportation and logistics strategies, while much attention is also being paid to the opportunities provided by digital technology for the tourism sector. In addition, in the light of the many negative externalities of a rapidly growing tourism sector, there is also an abundant literatuExposition 发表于 2025-3-27 12:15:07
Albrecht Eberle,Arthur Rizzi,Ernst Heinrich Hirschelrious policy options and instruments availableto policy makers. .. The book comprises two parts. The first partpresents general views on tourism and sustainable economicdevelopment, and some opinions on the relationship between tourism andthe environment. Some of the basic concepts implicit in sustainabilitya978-1-4613-6940-0978-1-4615-4321-3cleaver 发表于 2025-3-27 14:30:39
Albrecht Eberle,Arthur Rizzi,Ernst Heinrich Hirschelrious policy options and instruments availableto policy makers. .. The book comprises two parts. The first partpresents general views on tourism and sustainable economicdevelopment, and some opinions on the relationship between tourism andthe environment. Some of the basic concepts implicit in sustainabilitya978-1-4613-6940-0978-1-4615-4321-3cinder 发表于 2025-3-27 20:59:53
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http://reply.papertrans.cn/67/6693/669224/669224_39.pngPrologue 发表于 2025-3-28 11:09:30
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