Impact Factor
2.58
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.
Print issues ceased with v. 37 (2013).
Frequency of the online version varies from the print version.
Also issued online.
Vol. 16, no. 1-2 (JAN-APR 1992)19931110 Notice published Printed on acid-free paper that meets the full ANSI standard for Permanent Paper