Address: Vatutina st. 53, Vladikavkaz,
362025, RNO-A, Russia
Phone: (8672)23-00-54
E-mail: rio@smath.ru
Full name: Karima Ali Khelil
Work place: Badji Mokhtar University, Mathematical Department
Position: Lecturer
Work address: B.P. 12, Annaba 23000, Algeria
E-mail: kalikhelil@gmail.com