Speech Enhancement With a GSC-Like Structure Employing Eigenvector-Based Transfer Function Ratios Estimation
A. Krueger, E. Warsitz, R. Haeb-Umbach, IEEE Transactions on Audio, Speech, and Language Processing 19 (2011) 206–219.

Speech enhancement with a new generalized eigenvector blocking matrix for application in a generalized sidelobe canceller
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Fighting Spam: Motivating an Account-based Approach
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