Impact Factor
1.96
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.
Issues for Jan. 25, 1988- called also v. 1, no. 1- .
Also issued online.
v.14, no. 1 (Jan. 2001)20051228 Notice not published Printed on acid-free paper that meets the full ANSI standard for Permanent Paper