1. As we may think;Bush;Atlant. mon.,1945
2. Presidential address to the Institution of Electronic and Radio Engineers, London, October;Mountbatten;J. Br. I.R.E.,1946
3. The MIT technical information project;Kessler;Phys. Today,1965
4. Evaluation of user reactions to a prototype on-line information retrieval system;Meister;Report; NASA CR-918,1967
5. INTREX;Overhage,1965