1. J. F. Traub and H. Wózniakowski,A General Theory of Optimal Algorithms, Academic Press, New York (1980).
2. S. V. Pereverzev,Optimization of Methods for the Approximate Solution of Operator Equations [in Russian], Institute of Mathematics, Ukrainian Academy of Sciences, Kiev (1996).
3. R. Plato and G. Vainikko, “On the regularization of the Ritz-Galerkin method for solving ill-posed problems,”Uchen. Zap. Tart. Univ., Issue 863, 3–17 (1989).
4. R. Plato and G. Vainikko, “On the regularization of projection methods for solving ill-posed problems,”Numer. Math.,57, 63–70 (1990).
5. S. V. Pereverzev, “Optimization of projection methods for solving ill-posed problems,”Computing,55, 113–124 (1995).