Impact Factor
4.41
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.
Title from cover.
Print issues ceased with v. 7 (2005)
Place of publication varies.
Also issued online.
v. 1, no. 1 (Nov. 1999)20010122 Notice nor published Printed on acid-free paper