How complete is the Abstract Service?
The abstracts database contains data from several sources, including NASA’s Scientific and Technical Information group (STI), journal publishers SIMBAD, NED, and typed from table of contents. The original primary source of abstracts has been NASA’s STI, which provided abstracts from 1975 through about the middle of 1995. Since then, we have been receiving the majority of our abstracts directly from the journal editors. Starting in 2007 we have been able to further complete our coverage of historical records thanks to our access to CrossRef, which collects and makes available metadata records for most of the content produced by Scientific journals. We encourage authors to submit missing abstracts, preferably through our Submit Abstract Form provided for that purpose.
