“…Remark The single‐integral terms and are introduced in Γ( t ) to obtain more cross terms among x ( t ), x ( t − α 1 ) and x ( t − α 2 ). Further, different from the work of Raja et al, Zhang et al, and Qian et al, many triple‐integral terms are introduced into the augmented LKF in Corollary and Corollary . Also, due to the appearance of these triple‐integral terms in LKF, the integral terms such as …”