G. Bieber and H. Diener, StepMan ? A New Kind of Music Interaction, In: Human Computer Interaction International, 2005.

J. Brandt, N. Weiss, and S. R. Klemmer, txt4l8r: Lowering the Burden for Diary Studies under Mobile Conditions, CHI EA'07, pp.2303-2308, 2008.

S. Consolvo, D. W. Mcdonald, and T. Toscos, Activity sensing in the wild, Proceeding of the twenty-sixth annual CHI conference on Human factors in computing systems , CHI '08, pp.1797-1806, 2008.
DOI : 10.1145/1357054.1357335

N. Oliver and F. Flores-mangas, MPTrain, Proceedings of the 8th conference on Human-computer interaction with mobile devices and services , MobileHCI '06, 2006.
DOI : 10.1145/1152215.1152221

H. Qian, R. Kuber, and A. Sears, Maintaining levels of activity using a haptic personal training application, Proceedings of the 28th of the international conference extended abstracts on Human factors in computing systems, CHI EA '10, pp.3217-3222, 2010.
DOI : 10.1145/1753846.1753961

T. Reis, M. D. Sá, and L. Carriço, Multimodal Interaction: Real Context Studies on Mobile Digital Artefacts, LNCS, vol.5270, pp.60-69, 2008.
DOI : 10.1007/978-3-540-87883-4_7