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2. “Learning significant locations and predicting user movement with GPS,â€;Ashbrook,2002
3. “The MONARCA self-assessment system: a persuasive personal monitoring system for bipolar patients,â€;Bardram,2012
4. “Actiserv: activity recognition service for mobile phones,â€;Berchtold,2010
5. “Move2Play: an innovative approach to encouraging people to be more physically active,â€;Bielik,2012