Impact Factor
3.12
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. 56, no. 8 (Dec. 2014).
Also issued online.
Vol. 28, no. 3 (1995)19950516 Notice published Printed on acid-free paper