1. A. Ben-Israel and A. Charnes, “Contribution to the Theory of Generalized Inverses,” J. SIAM 11, 667–699 (1963).
2. E. F. Galba, “Iterative methods for calculating a weighted pseudoinverse,” Zh. Vychisl. Mat. Mat. Fiz. 36, 28–39 (1996).
3. E. F. Galba, “Iterative Methods for Computing Weighted Minimum-Length Least Squares Solution with a Singular Weight Matrix,” Zh. Vychisl. Mat. Mat. Fiz. 39, 882–896 (1999) [Comput. Math. Math. Phys. 39, 848–861 (1999)].
4. I. V. Sergienko, E. F. Galba, and V. S. Deineka, “Expansion of Weighted Pseudoinverse Matrices in Matrix Power Products,” Ukr. Mat. Zh. 56, 1539–1556 (2004).
5. E. F. Galba, V. S. Deineka, and I. V. Sergienko, “Fast Convergent Iterative Methods for the Computation of Weighted Pseudoinverses and Weighted Normal Pseudosolutions with Singular Weights,” Zh. Vychisl. Mat. Mat. Fiz. 45, 1731–1755 (2005) [Comput. Math. Math. Phys. 45, 1667–1690 (2005)].