@article(
HS04,   Author="Dominic Hughes and Vitaly Shmatikov",
        Title="Information Hiding, Anonymity and Privacy: a Modular Approach",
        Journal="J.\ Computer Security",
        Note="Version available at
        \texttt{\small http://boole.stanford.edu/~dominic/papers.html}",
        Year=2004,
	pages="3--36",
	volume=12,
	issue=1)