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1
Information and Communication Technologies in Tourism 1998 : proceedings of the international conference in Istanbul, Turkey, 1998 / Dimitrios Buhalis, A Min Tjoa, Jafar Jafari (eds.).
Wien ; Springer, 1998.
xii, 344 p. : ill. ; 25 cm.

This volume presents the proceedings of the 1998 International Conference on Information and Communication Technologies in Tourism, which sought to provide a forum for discussing the role of telecommunication and information systems in tourism.
2
Introducción al turismo / Amparo Sancho; Dimitrios Buhalis, Javier Gallego, Jaume Mata,.
Madrid : OMT, Organización Mundial del Turismo, 1998
394 p. ; 30 cm.