2Rajakumar, C. and Rogers, C.R. The Lanczos Algorithm Applied to Unsymmetric Generalized Eigenvalue Problems [J]. International Journal for Numercial Method in Engineering, 1991,32:1009-1026.
3Grimes, R.G., Lewis, J.G., and Simon, H.D., A Shifted Block Lanczos Algorithm for Solving Sparse Symmetric Generalized Eigenproblems [J]. SIAM Journal Matrix Analysis Applications, 1994,15( 1 ):228-272.