Information retrieval for hierarchical set of descriptors /
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| OCLC: | 17305104 |
|---|---|
| Main Author: | |
| Language: | English |
| Published: |
Warszawa :
PKiN,
1974.
|
| Series: | CC PAS reports ;
v.138. |
| Format: | Monograph Note that CRL will digitize material from the collection when copyright allows. |