“…In the presence of the thermo‐viscoelastic damping, Djebabla and Tatar considered the following Timoshenko system where ρ 1 , ρ 2 , ρ 3 , k , b , β , l , and γ are positive constants. They proved the exponential decay of solutions in the energy norm if and only if the coefficients satisfy and g decays uniformly.…”