Impact Factor
2.17
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.
Description based on: Vol. 1, no. 3 (Apr. 1990).
Print issues ceased with 2021.
Vol. 2, no. 1-4 published in 1992/1993.
Also issued online.
v. 1, no. 1 (Nov. 2004)20070925 Notice published Printed on acid-free paper