Impact Factor
2.86
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.
Issues for 1971 have issue numbers only but constitute v. 1.
Special supplements with distinctive titles accompany some issues.
Also issued online.
Indexes: 1971-76. 1 v.
Vol. 16, no. 1 (JAN-FEB 1986)19900914 Notice not published Printed on acid-free paper