“…Since f (·) and f T (·) which we consider are 2 -periodic and even, it is sufficient to confine ourselves to the study of the interval 0 . Asymptotic normality of [4,11,Chapter 5,24,15,2], among others). Various asymptotic statistical analyses of stationary processes, including stationary long memory processes, have received a great deal of attention (see [22,1,34,12,9,38] and references therein).…”