code: public static Bibliography makeAdhocBibliography(String style, CSLItemData... items)
  			throws IOException {
  		return makeAdhocBibliography(style, "html", items);
  	}
docs: Creates an ad hoc bibliography from the given citation items using the
  <code>"html"</code> output format. Calling this method is rather
  expensive as it initializes the CSL processor. If you need to create
  bibliographies multiple times in your application you should create
  the processor yourself and cache it if necessary.
  @param style the citation style to use. May either be a serialized
  XML representation of the style or a style's name such as <code>ieee</code>.
  In the latter case, the processor loads the style from the classpath (e.g.
  <code>/ieee.csl</code>)
  @param items the citation items to add to the bibliography
  @return the bibliography
  @throws IOException if the underlying JavaScript files or the CSL style
  could not be loaded
  @see #makeAdhocBibliography(String, String, CSLItemData...)