Activity sensing in the wild: a field trial of ubifit garden. - Sunny Consolvo; David W. McDonald; Tammy Toscos; Mike Y. Chen; Jon Froehlich; Beverly L. Harrison; Predrag V. Klasnja; Anthony LaMarca; Louis LeGrand; Ryan Libby; Ian E. Smith; James A. Landay (CHI, 2008)

Flowers or a robot army?: encouraging awareness & activity with personal, mobile displays. - Sunny Consolvo; Predrag V. Klasnja; David W. McDonald; Daniel Avrahami; Jon Froehlich; Louis LeGrand; Ryan Libby; Keith Mosher; James A. Landay (UbiComp, 2008)

Validated caloric expenditure estimation using a single body-worn sensor. - Jonathan Lester; Carl Hartung; Laura Pina; Ryan Libby; Gaetano Borriello; Glen Duncan (UbiComp, 2009)