1. Determination of Pisarenko frequency estimates as eigenvalues of an orthogonal matrix;Ammar,1987
2. Geometric Algebra;Artin,1957
3. Jordan-Algebren;Braun,1966
4. Der HR-Algorithmus zur numerischen Bestimmung der Eigenwerte einer Matrix;Bunse-Gerstner,1978
5. An analysis of the HR algorithm for computing the eigenvalues of a matrix;Bunse-Gerstner;Linear Algebra Appl.,1981