Authors: N.F.Zhang

Citation: N.f.zhang, Group delay,partial group delay and index-lag relationship for multidimensional processes, Communications in statistics. Theory and methods Communications in statistics. Part A. Theory and methods , 19(9), 1990, pp. 3137-3146

Authors: N.F.Zhang,G.A.Stenback,D.M.Wardrop

Citation: N.f.zhang,g.a.stenback,d.m.wardrop, Interval estimation pf process capability index Cpk, Communications in statistics , 19(12), 1990, pp. 4455-4470