1. Björck, Å., 1996. Numerical Methods for Least Squares Problems. SIAM, Philadelphia.
2. Iterative refinement of linear least squares solutions by householder transformation;Björck;BIT,1967
3. Blackford, L.S., Choi, J., Cleary, A., D'Azevedo, E., Demmel, J., Dongarra, J., Hammarling, S., Henry, G., Petitet, A., Stanley, K., Walker, D., Whaley, R.C., 1997. ScaLAPACK Users’ Guide SIAM, Philadelphia.
4. Booth, S.P., Fisher, J., MacCallum, P.H., Simpson, A.D., 1996. Introduction to the Cray T3D at EPCC. Edinburgh Parallel Computer Centre.
5. Cray Research Inc., 1993. Cray Research MPP Software Guide, SG-2508.