Extract a list of sources from a TAF *.bib file (i.e. DATA.bib or
SOFTWARE.bib). This allows the user to print the lisst of sources
but also to process them individualy, giving more flexibiulity when
developing larger projects.
Usage
taf.sources(type)
Arguments
type
one of "data", "software" or "both"
See Also
process.entry to process one of the entries returned by
`taf.sources`.