Impact Factor
3.87
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.
Issue for Nov. 1977 called v. 7, no. 8 but constitutes v. 2, no. 8.
Cover of Vol. 2, no. 8 (1977) is misnumbered Vol. 8. Vol. 11, no. 6 (1986) misnumbered Vol. 23, no. 6 (1986). Cover of Vol. 14, no. 3 (Mar. 1989) misnumbered Vol. 14, no. 4 (Mar. 1989).
Also issued online.
Vol. 6, no. 1 (1981)19900914 Notice not published Printed on acid-free paper