protected Person findPerson(String xref) {
		xref = xref.substring(1, xref.length() - 1);
		
		if (isDebugging())
			System.out.print(">>> Looking for person " + xref + " ... ");
	
		Person person = (Person)getObjectByXref(xref);
		
		if (person != null && isDebugging())
			System.out.println("found " + person);
	
		if (person == null) {
			if (isDebugging())
				System.out.println("not found, creating new person");
			person = new Person();
			putObjectByXref(xref, person);
		}
		
		return person;
	}