Koichi Munakata Masatoshi Yoshikawa Shunsuke Uemura Integrating Periodic Data Sequences Based on Freshness and Synchronousness. 47-54 2000 conf/ride/2000 RIDE http://doi.ieeecomputersociety.org/10.1109/RIDE.2000.836499 db/conf/ride/ride2000.html#MunakataYU00