public void endElement(String namespaceURI, String localName, String rawName)
			throws SAXException {
		if (rawName.equals("author")) {
			article.addAuthor(content);
		} else if (rawName.equals("title")) {
			article.setTitle(content);
		} else if (rawName.equals("pages")) {
			article.setPages(content);
		} else if (rawName.equals("article") || rawName.equals("inproceedings")) {
			article.update();
			list.add(article);
			if (list.size() == LIST_SIZE) {
				DB_helper.addArticlesIntoDatabase(list);
				list.clear();
			}
		}
	}