Impact Factor
4.85
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.
Description based on: Vol. 25, no. 4 (Sept. 1986); title from cover.
Also issued online.
Vol. 31, no. 1-2 (FEB 1990)19900918 Notice published Printed on acid-free paper