Canlyniadau Chwilio - Gretzel, Ulrike

Information and Communication Technologies in Tourism 2010 Proceedings of the International Conference in Lugano, Switzerland, February 1012, 2010 / gan Gretzel, Ulrike

Cael y testun llawn

Information and Communication Technologies in Tourism 2008 Proceedings of the International Conference in Innsbruck, Austria, 2008 / gan OConnor, Peter

Awduron Eraill: “...Gretzel, Ulrike...”
Cael y testun llawn

Information and Communication Technologies in Tourism 2009 Proceedings of the International Conference in Amsterdam, The Netherlands, 2009 / gan Hpken, Wolfram

Awduron Eraill: “...Gretzel, Ulrike...”
Cael y testun llawn