Impact Factor
4.47
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.
Print issues ceased with v. 49 (2015).
Also issued online.
Vol. 12, no. 2 (1994)19950516 Notice published Printed on acid-free paper