Gero Mühl Arnd Schröter Helge Parzyjegla Samuel Kounev Jan Richling Stochastic Analysis of Hierarchical Publish/Subscribe Systems. 97-109 2009 Euro-Par http://dx.doi.org/10.1007/978-3-642-03869-3_13 conf/europar/2009 db/conf/europar/europar2009.html#MuhlSPKR09