1. Automatic Document Classification
2. Automatic Document Classification
3. , and 1963. Some technical notes on coding errors. WRA PO7, Westat Research Analysts, Inc., 1395 Allison Street, Denver 15, Colorado.
4. , and 1963. Analysis of an indexing and retrieval experiment for the organometallics file of the U. S. Patent Office. WRA PO10, Westat Research Analysts, Inc., 1395 Allison Street, Denver 15, Colorado.