Address: Vatutina st. 53, Vladikavkaz,
362025, RNO-A, Russia
Phone: (8672)23-00-54
E-mail: rio@smath.ru
Full name: Ali Hakem
Work place: Djillali Liabes university, Laboratory ACEDP
Position: Professor
Work address: Sidi Bel Abbes 22000, Algeria
E-mail: hakemali@yahoo.com