1. Adomavicius G, Tuzhilin A (2005) Toward the next generation of recommender systems: a survey of the state-of-the-art and possible extensions. IEEE Trans Knowl Data Eng 17(6):734–749
2. Ricci F, Fesenmaier DR, Mirzadeh N, Rumetshofer H, Schaumlechner E, Venturini A, Wöber KW, Zins AH (2006) DieToRecs: a case-based travel advisory system. Destination recommendation systems: behavioral foundations and applications. CABI Publisher International, Wallingford
3. Venturini A, Ricci F (2006) Applying trip@advice recommendation technology to www.visiteurope.com. In: 17th European conference on artificial intelligence. IOS Press, Amsterdam, pp 607–611
4. Dunstall S, Horn M, Kilby P, Krishnamoorthy M, Owens B, Sier D, Thiebaux S (2004) An automated itinerary planning system for holiday travel. J Inf Technol Tourism 6:1–33
5. Petrone G, Ardissono L, Goy A (2003) INTRIGUE: personalized recommendation of tourist attractions for desktop and handset devices. J Appl Artif Intell 17:687–714