Impact Factor
3.42
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.
Print issues ceased with 2013.
Also issued online.
Vol. 1, no. 1 (FEB 1991)19931221 Notice not published Printed on acid-free paper