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)
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pp. 253-260
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1991 ◽
Vol 31
(2)
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pp. 260-270
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1994 ◽
Vol 34
(1)
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pp. 39-46
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1992 ◽
Vol 32
(5)
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pp. 453-462
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1995 ◽
Vol 35
(1)
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pp. 1-7
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1993 ◽
Vol 33
(3)
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pp. 369-377
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1989 ◽
Vol 29
(3)
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pp. 215-224
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