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  1. Georgy, U.: Chemical Abstracts bei sechs Hosts : ein Vergleich (1994) 9.30 
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  2. Simon, H.-R.; Ockenfeld, M.: ¬Die Entwicklung von Chemical Abstracts 1907 bis 1980 (1981) 9.30 
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  3. Heckmann, P.; Koniczek, L.; Schneider, W.; Schwittek, C.: Aktueller Vergleich (Benutzerfreundlichkeit, Effizienz, Preis ...) für Strukturrecherchen : Online (CA, Beilstein) versus Inhouse (Crossfire) (1996) 9.30 
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  4. Siegfried, R.: Aktueller Vergleich (Benutzerfreundlichkeit, Effizienz, Preis ...) für Strukturrecherchen : Online (CA, Beilstein) versus Inhouse (Crossfire) (1996) 9.30 
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  5. CAS und CSA vereinbaren die Bereitstellung weiterer Datenbanken auf STN International (2004) 9.30 
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