Impact Factor
3.44
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.
Vol. 21, no. 1 (Feb. 1996) called Mar. 1996 on back cover.
Also issued online.
Vol. 11, no. 1 (MAR 1989)19900523 Notice published Printed on acid-free paper