Impact Factor
1.84
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.
Vols. 1-6 reissued in one volume in 1965.
Issues have also whole numbering.
Also issued online.
Vol. 37, no. 943 (MAR 1995)19950523 Notice not published Printed on acid-free paper