Fetters, L.K.: ¬A guide to indexing software (1989)
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- Imprint
- Washington : American Society of Indexers
Fugmann, R.: ¬The analytico-synthetic foundation for large indexing & information retrieval systems : dedicated to Prof. Dr. Werner Schultheis, the vigorous initiator of modern chem. documentation in Germany on the occasion of his 85th birthday (1983)
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