Impact Factor
3.55
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.
Supplements accompany some numbers and are paged continuously with the volume they supplement.
Also issued online.
Vol. 14, no. 1 (FEB 1962)19890925 Notice published Printed on acid-free paper