TY - CONF T1 - Walking in the Wild – Using an Always-on Smartphone Application to Increase Physical Activity JO - International Federation for Information Processing Conference on Human-Computer Interaction 2013 PY - 2013/01/01 AU - Harries T AU - Eslambolchilar P AU - Stride C AU - Rettie R AU - Walton S ED - VL - 4 SP - 19 EP - 36 Y2 - 2024/12/22 ER -