Impact Factor
3.23
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.
Place of publication varies.
Print issues ceased with V. 120 (2015).
Also issued online.
Vol. 85, no. 1 (1980)19921023 Notice not published Printed on acid-free paper