1. The principle of minimized iterations in the solution of the matrix eigenvalue problem;Arnoldi,1951
2. Accelerated projection methods for computing pseudo inverse solutions of systems of linear equations;Björck;Nordisk Tidskr. Informationsbehandling (BIT),1979
3. Reothogonalization and stable algorithms for updating the Gram-Schmidt QR factorization;Daniel;Math. Comp.,1976
4. The block Lanczos method for computing eigenvalues;Golub,1977
5. Simultaneous iteration for partial eigensolution of real matrices;Jennings;J. Inst. Math. Appl.,1975