Computer storage and retrieval of generic chemical structures in patents. 12. Principles of search operations involving parameter lists: matching-relations, user-defined match levels, and transition from the reduced graph search to the refined search

1991 ◽  
Vol 31 (2) ◽  
pp. 253-260 ◽  
Author(s):  
Winfried Dethlefsen ◽  
Michael F. Lynch ◽  
Valerie J. Gillet ◽  
Geoffrey M. Downs ◽  
John D. Holliday ◽  
...  
1991 ◽  
Vol 31 (2) ◽  
pp. 260-270 ◽  
Author(s):  
Valerie J. Gillet ◽  
Geoffrey M. Downs ◽  
John D. Holliday ◽  
Michael F. Lynch ◽  
Winfried Dethlefsen

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