Impact Factor
4.74
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. 15, no. 6 (2008).
1.1- also called v. 1, no. 1- .
1.1- released Dec. 1993- .
Also issued online.
Sponsored by the National Science Council, Republic of China.