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ddc_ss:"025.3 / dc22" 4
ddc_ss:"025.3 / dc20" 6

Fetters, L.K.: ¬A guide to indexing software (1989) 10.31

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Classification: 025.3 / dc19
Ddc: 025.3 / dc19

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) 10.31
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025.3 / dc19

Ddc

025.3 / dc19

Garfield, E.: Citation indexing : its theory and application in science, technology, and humanities (1979) 10.31

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Classification: 025.3 / dc19
Ddc: 025.3 / dc19

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