A Characterisation of Weak Bisimulation Congruence.

Rob J. van Glabbeek A Characterisation of Weak Bisimulation Congruence. 26-39 2005 conf/birthday/2005klop Processes, Terms and Cycles http://dx.doi.org/10.1007/11601548_4 db/conf/birthday/klop2005.html#Glabbeek05