CHAKIR LOQMAN, and MOHAMED ETTAOUIL, and YOUSSEF HAMI, and KHALID HADDOUCH, (2013) Convex Quadratic Reformulations For Solving Days-Off Scheduling Problem. Journal of Theoretical and Applied Information Technology, 2013,49(1): 23-31..

MOHAMED ETTAOUIL, and CHAKIR LOQMAN, and KHALID HADDOUCH, and YOUSSEF HAMI, (2013) Maximal constraint satisfaction problems solved by continuous hopfield networks. Wseas Transactions On Computers, Issue 2,Volume 12, February 2013, PP. 29-40..

MOHAMED ETTAOUIL, and CHAKIR LOQMAN, and YOUSSEF HAMI, and KHALID HADDOUCH, (2012) Task Assignment Problem Solved by Continuous Hopfield Network. International journal of Computer Science Issues, Vol. 9, Issue 2, N° 1, P. 206, 2012..