1. P.M. Schultheiss “Some Lessons from Array Processing Theory” NATO Advanced Study Institute on Signal Processing with Emphasis on Underwater Acoustics, Portovenere, Italy, Sept. 1976.
2. H.L. Van Trees “Detection and Estimation Theory” Part I, Chapter 2, Wiley 1968.
3. H. Cramer “Mathematical Methods of Statistics” Chapter 32, Princeton Univ. Press 1951.
4. W.J. Bangs “Array Processing with Generalized Beamformers” Ph.D. Dissertation, Yale University 1971 [NUSC Tech. Rep. Sept. 1971.]
5. B.D. Steinberg “Principles of Aperture and Array System Design” p. 311, Wiley 1976.