Müller, Hansruedi. Quality requirements for aerial cableways and their services - the case of Switzerland / Hansruedi Müller, Jürg Michel. - 2001. // Tourism review = Revue de tourisme = Zeitschrift für Fremdenverkehr. Vol. 56 (2001), No. 3-4
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Quality requirements for aerial cableways and their services - the case of Switzerland ...