http://tags.library.upenn.edu/project/28508/authorities PennTags Feed http://tags.library.upenn.edu/makerecord/project/28508 http://tags.library.upenn.edu/makerecord/project/28508 Goldstein Director of Information Processing University of Pennsylvania http://tags.library.upenn.edu/makerecord/url/28526 http://tags.library.upenn.edu/makerecord/url/28526 Slides from a 2002 presentation, but still seem relevant