Impact Factor
3.70
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.
Each issue has also a distinctive title.
Subtitle dropped as of v. 5, no. 4 (Dec. 2004).
Supplements accompany some vols.
Also issued online.
v. 1, no. 1 (Jul. 2000)20041101 Notice published Printed on acid-free paper