1. Generalized Inverses: Theory and Applications;Ben-Israel,1974
2. Generalized Inverses of Linear Transformations;Campbell,1979
3. Algebra (Volume 2);Cohn,1979
4. Pseudoinverses in associative rings and semigroups;Drazin;Amer. Math. Monthly,1958
5. Linear Algebra;Greub,1975