Amanda J. Parkes Adam Kumpf Hiroshi Ishii Piezing: a garment harvesting energy from the natural motion of the human body. 23-24 2009 Tangible and Embedded Interaction http://doi.acm.org/10.1145/1517664.1517674 conf/tei/2009 db/conf/tei/tei2009.html#ParkesKI09