Information and communication technologies in tourism 2004 : proceedings of the international conference in Cairo, Egypt, 2004. : 11th international conference on information and communication technologies in travel and tourism : 11th ENTER : Jan 2004, Cairo, Egypt. (Springer Computer Science)
Information and communication technologies in tourism 2004 : proceedings of the international conference in Cairo, Egypt, 2004. : 11th international conference on information and communication technologies in travel and tourism : 11th ENTER : Jan 2004, Cairo, Egypt.