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Guide Dialog-searChin.-Guide to Dialog 
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J-Palo Alto, Ca.: Lockheed DialSg Information 
Retrieval Service (1982). 4 

[1.J 
Text. 
[2.J 
Bluesheets. 
[3.J 
Yellowsheets. Darin außerdem: DialogLab.-
workbook. 3. ed. 1981.