public List<String> getAuthors(int id){
		String query="select authors from authorlist where paperid="+id;
		ResultSet rs=sqLconnection.Query(query);
		try {
			rs.next();
			String []authors=rs.getString("authors").split(",");
			authorList=Arrays.asList(authors);
		} catch (SQLException e) {
			e.printStackTrace();
		}
		return authorList;
	}