Investigative study of planar array ambiguities based on "hyperhelical" parameterization. - Athanassios Manikas; Christos Proukakis; Vasileios Lefkaditis (IEEE Trans. Signal Process., 1999)

Ambiguities in statistical signal processing. - Vasileios Lefkaditis; Athanassios Manikas (EUSIPCO, 2000)