Marko Vrhovnik Oliver Suhre Stephan Ewen Holger Schwarz PGM/F: A Framework for the Optimization of Data Processing in Business Processes. 1584-1587 2008 ICDE http://dx.doi.org/10.1109/ICDE.2008.4497627 conf/icde/2008 db/conf/icde/icde2008.html#VrhovnikSES08