Impact Factor
3.63
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. 31, no. 1 (Jan.-March 2000); title from cover.
Print issues ceased with v. 39 (2008)?
Supplements accompany some numbers.
Also issued online and on CD-ROM.
English and Portuguese, with summary in the other language. Online version available in English and Portuguese. Search interface available in English, Portuguese, and Spanish.