Impact Factor
4.13
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.
Vols. for 2005- have title: Philosophical transactions of the Royal Society. A, Mathematical, physical, and engineering sciences.
"Research frontiers," <1997->
Title from cover.
Also issued online.