Impact Factor
2.27
Estimated influence, citation density, publishing volume, and citation integrity from the analytics table.
Volume, recency, access pattern, and citing-community signals from the journal analytics record.
Recent article records with DOI-first linking and condensed abstracts.
Imprint varies.
Also issued online.
Vol. 14, no. 2 (FEB 1989)19890918 Notice published Printed on acid-free paper that meets the full ANSI standard for Permanent Paper