. "GLOBAL EXISTENCE AND ENERGY DECAY OF SOLUTIONS TO A VISCOELASTIC TIMOSHENKO BEAM SYSTEM WITH A NONLINEAR TIME VARYING DELAY TERM IN THE WEAKLY NONLINEAR INTERNAL FEEDBACKS Vol. 5(1) Jan. 2017, No. 23, pp. 219-241 MOUNIR BAHLIL", Electronic Journal of Mathematical Analysis and Applications, 5, 1, 2017, -. doi: 10.21608/ejmaa.2017.310889