Richard Kennaway Paula Severi M. Ronan Sleep Fer-Jan de Vries Infinitary Rewriting: From Syntax to Semantics. 148-172 2005 conf/birthday/2005klop Processes, Terms and Cycles http://dx.doi.org/10.1007/11601548_11 db/conf/birthday/klop2005.html#KennawaySSV05