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Project 4020
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Version 1.0
Ökoplan – mehr Umweltverantwortung durch den Reiseveranstalter Hotelplan
Ref. 4020
Project
Overview
General description
Funding
Bibliographical References
Methods
Version history
Datasets
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Bibliographical References
Bibliographical References
-
Unpublished documents
Document
Mezzasalma, R..
Oeko-Management für Reiseveranstalter..
In: Berner Studien zu Freizeit und Tourismus.
