FlowField: investigating the semantics of caress. - Timothy T. H. Chen; Sidney S. Fels; Thecla Schiphorst (SIGGRAPH Abstracts and Applications, 2002)

FlowField and beyond: applying pressure-sensitive multi-point touchpad interaction. - Timothy T. H. Chen; Sidney S. Fels; Saehee Sarah Min (ICME, 2003)

A malleable surface touch interface. - Florian Vogt; Timothy T. H. Chen; Reynald Hoskinson; Sidney S. Fels (SIGGRAPH Sketches, 2004)