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2. Liliana Ardissono Daniela Petrelli and Tsvi Kuflik. 2012. Personalization in Cultural Heritage: The Road Travelled and the One Ahead. User Modeling and User-Adapted Interaction. Special Issue on Coming of Age: Celebrating a Quarter Century of User Modeling and Personalization 22 1-2 (2012) 73-99. https://doi.org/10.1007/s11257-011-9104-x
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5. On planning sightseeing tours with TripBuilder