Nancy Grace Butterfield Olson (April 10, 1936 – December 24, 2018) was an American librarian and educator, an expert on cataloging rules for non-print materials, and the founder of the Online Audiovisual Catalogers (OLAC). (From Wikipedia)
More about Nancy B. Olson:Books by Nancy B. Olson:
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Olson, Nancy B., ed.: Cataloging Internet Resources: A Manual and Practical Guide (second edition (since superseded), c1995) (HTML in Germany)
Find more by Nancy B. Olson at your library, or elsewhere.