labelMaker = new LabelMaker();
labelMaker.addRule(new ArticleLabelRule(),
BibtexEntryType.ARTICLE);
labelMaker.addRule(new BookLabelRule(),
BibtexEntryType.BOOK);
labelMaker.addRule(new IncollectionLabelRule(),
BibtexEntryType.INCOLLECTION);
labelMaker.addRule(new InproceedingsLabelRule(),
BibtexEntryType.INPROCEEDINGS);
}