Name of the format. One of "rdf-xml", "turtle",
"citeproc-json", "schemaorg", "codemeta", "text", "ris", "bibtex"
(default), "datacite-xml", "datacite-json", "bibentry", or
"jats".
style
a CSL style (for text format only). See
‘rcrossref::get_styles()’ for options. Default: 'apa'. If there's
a style that DataCite doesn't support you'll get a
(500) Internal Server Error