Some papers and presentations on the topic available here: http://www.iza.org/conference_files/PeIdSS2011/viewProgram?conf_id=2013 -m. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://www.lists.esipfed.org/pipermail/esip-preserve/attachments/20110128/5fefdaf0/attachment.html>