1. H. Akaike, “A new look at statistical model identification,”IEEE AC 19, pp. 716–723, 1974.
2. T.W. Anderson, “Asymptotic theory for principal component analysis,”Ann. Math. Stat. 34, pp. 122–148, 1963.
3. W. Bangs, “Array processing with generalized beamformers.” Ph.D. dissertation, Yale University, 1971.
4. W.J. Bangs and P.M. Schultheiss, “Space-time processing for optimal parameter estimation”, inSignal Processing. Academic: New York, 1973.
5. A.J. Barabell, “Improving the resolution performance of eigenstruction-based direction finding algorithms,”ICASSP 83, (Boston), pp. 336–339.