Tae-Heon Yang Gi-Hun Yang Dong-Soo Kwon Sungchul Kang Implementing Compact Tactile Display for Fingertips with Multiple Vibrotactile Actuator and Thermoelectric Module. 580-581 2007 conf/haptics/2007 WHC http://doi.ieeecomputersociety.org/10.1109/WHC.2007.72 db/conf/haptics/whc2007.html#YangYKK07