Impact Factor
3.73
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. 45 (2013).
Supplements accompany some vols.
Also issued online.
Vol. 14, no. 5 (1985)19890915 Notice published Printed on acid-free paper