1. Theory of Errors and Generalized Matrix Inverses;Bjerhammer,1973
2. A bidiagonalization algorithm for solving large and sparse ill-posed systems of linear equations;Björck;BIT Numer. Math.,1988
3. Quality of Regularization Methods, DEOS Report 98.2;Bouman,1998
4. On ill-posed problems and the method of conjugate gradient;Brakhage,1987
5. Tikhonov regularization of large linear problems;Calvetti;BIT Numer. Math.,2003