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2. J. Bryant and P. Hammersley "Practical experience of using a CODASYL-based database in a teaching hospital" proceedings of medical data proceedings of medical data processing symposium (Toulouse) IRIA (March 1976). J. Bryant and P. Hammersley "Practical experience of using a CODASYL-based database in a teaching hospital" proceedings of medical data proceedings of medical data processing symposium (Toulouse) IRIA (March 1976).
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4. E. M. Hoskins & M. F. Bott (1) DHSS Development planning system and (2) DHSS production document system BCS preprints of the International Conference on Computers in Architecture York (September 1972) 229--239. E. M. Hoskins & M. F. Bott (1) DHSS Development planning system and (2) DHSS production document system BCS preprints of the International Conference on Computers in Architecture York (September 1972) 229--239.