Measurement of Power Spectra from the Point of View of Communication Engineering, parts I and II.
BSTJ vol XXXVII numbers 1 & 2, January and March 1958; Blackman & Tukey's article in 2 parts.
BSTJ vol XXXVII numbers 1 & 2, January and March 1958; Blackman & Tukey's article in 2 parts.