H. Berger, D. Merkl, M. Dittenbach:
"Experiments in Multi-Class e-Mail Categorization";
Talk: International Baltic Conference on Databases and Information Systems, Vilnius; 2006-07-03 - 2006-07-06; in: "Proc. Seventh Intern. Baltic Conf. on Databases and Information Systems 2006", (2006), ISBN: 9955-28-013-1; 79 - 90.
http://aleph.ub.tuwien.ac.at/F?base=tuw01&func=find-c&ccl_term=AC06587142