1. Publishing on the Internet: a Proposal for the Future;Heller,1995
2. D. Harman, P. Schäubele and A. Smeaton, in R.A. Cole, J. Mariani, H. Uszkoreit, A. Zaenen and V. Zue (Editors), Survey of the State of the Art in Human Language Technology, Center for Spoken Language Understanding, Oregon Graduate Institute.
3. Information Access, lecture at the Language and Technology Awareness Day;Jones,1994