Las guerras entre bizantinos y musulmanes siglos VII al XI

http://imtw.ru/topic/8423-%D0%B2%D0%B8%D0%B7%D0%B0%D0%BD%D1%82%D0%B8%D1%8F-%D0%B2%D0%BE%D1%81%D1%82%D0%BE%D1%87%D0%BD%D0%B0%D1%8F-%D1%80%D0%B8%D0%BC%D1%81%D0%BA%D0%B0%D1%8F-%D0%B8%D0%BC%D0%BF%D0%B5%D1%80%D0%B8%D1%8F/page__p__854239#entry854239