Org currently includes the following export processors:
this export processor uses ‘bibtex’, the historical bibliographic processor used with LaTeX, thus allowing the use of data and style files compatible with this processor (including a large number of publishers’ styles). It uses citation commands implemented in the LaTeX package ‘natbib’, allowing more stylistic variants that LaTeX’s ‘\cite’ command.
this backend allows the use of data and formats prepared for ‘biblatex’, an alternate bibliographic processor used with LaTeX, which overcomes some serious ‘bibtex’ limitations, but has not (yet?) been widely adopted by publishers.
The ‘#+cite_export:’ keyword specifies the export processor and the citation (and possibly reference) style(s); for example (all arguments are optional)
#+cite_export: basic author author-year
specifies the “basic” export processor with citations inserted as author’s name and references indexed by author’s names and year;
#+cite_export: csl /some/path/to/vancouver-brackets.csl
specifies the “csl” processor and CSL style, which in this case defines numeric citations and numeric references according to the ‘Vancouver’ specification (as style used in many medical journals), following a typesetting variation putting citations between brackets;
#+cite_export: natbib kluwer
specifies the “natbib” export processor with a label citation style conformant to the Harvard style and the specification of the Wolkers-Kluwer publisher; since it relies on the ‘bibtex’ processor of your LaTeX installation, it won’t export to anything but PDF.