|Publication status||Published - 2007|
Bibliographical noteThis paper was presented at the 25th ACM International Conference on Design of Communication (SIGDOC '07) held on 22-24 October and was subsequently published in the proceedings.
© ACM, 2007. This is the author's version of the work. It is posted here by permission of ACM for your personal use. Not for redistribution. The definitive version was published in Proc. of the 25th ACM International Conference on Design of Communication (SIGDOC '07)(2007).