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For conference registration information and final call for papers see
_http://www.bbk.ac.uk/ce/bill/BILLconf07callandreg.pdf_ 
(https://mango.birkbeck.ac.uk/exchweb/bin/redir.asp?URL=http://www.bbk.ac.uk/ce/bill/BILLconf07calla
ndreg.pdf)