Impact Factor
4.80
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.
Also issued online.
Indexes: Vols. 1-10, 1924/25-1932, in v. 10; Vols. 11-20, 1932-37, in v. 20; Vols. 21-30, 1937-42, in v. 30; Vols. 31-40, 1942-47, in v. 40.
Vol. 90, no. 1 (JAN 1990)19890828 Notice not published Printed on acid-free paper