http://ar.wikipedia.org/wiki/%D9%83%D8%AB%D8%A7%D9%81%D8%A9_%D8%B3%D9%83%D8%A7% D9%86%D9%8A%D8%A9

http://www.uae.ii5ii.com/showthread.php?t=32641

maybe it can help you