Yanif Ahmad Olga Papaemmanouil Ugur Çetintemel Jennie Rogers Simultaneous Equation Systems for Query Processing on Continuous-Time Data Streams. 666-675 2008 ICDE http://dx.doi.org/10.1109/ICDE.2008.4497475 conf/icde/2008 db/conf/icde/icde2008.html#AhmadPCR08