A. Hotho, S. Staab, und G. Stumme. Proc. of the 7th European Conference on Principles and Practice of Knowledge Discovery in Databases, PKDD, Volume 2838 von LNCS, Seite 217-228. (2003)
A. Hotho, A. Maedche, und S. Staab. Proc. of the Workshop ``Text Learning: Beyond Supervision'' at IJCAI 2001. Seattle, WA, USA, August 6, 2001, (2001)