Cullum, J. & Willoughby, R.: Lanczos algorithms for large symmetric eigenvalue computations: Documentaion and Listings Original Lanczos Codes. Society for Industrial Mathematics, 2002
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Cullum, J. & Willoughby, R.: Lanczos algorithms for large symmetric eigenvalue computations: Theory. Society for Industrial Mathematics, 2002
[Volltext]  [BibTeX]