Giuliano Casale Richard R. Muntz Giuseppe Serazzi A New Class of Non-Iterative Bounds for Closed Queueing Networks. 69-76 2006 conf/mascots/2006 MASCOTS http://doi.ieeecomputersociety.org/10.1109/MASCOTS.2006.7 db/conf/mascots/mascots2006.html#CasaleMS06