Impact Factor
3.03
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.
Title from cover.
Print issues ceased with v. 30, no. 6 (Dec. 2015).
Also issued online.
(1989)19890816 Notice published Printed on acid-free paper