Daniël W. E. Schobben, Piet C. W. Sommen. On the indeterminacies of convolutive blind signal separation based on second order statistics. In ISSPA '99. Proceedings of the Fifth International Symposium on Signal Processing and its Applications, Brisbane, QL, Australia, August 22-25, 1999. pages 215-218, IEEE, 1999. [doi]
Abstract is missing.