Researchr is a web site for finding, collecting, sharing, and reviewing scientific publications, for researchers by researchers.
Sign up for an account to create a profile with publication list, tag and review your related work, and share bibliographies with your co-authors.
Yimin Wei, Hebing Wu. Challenging Problems on the Perturbation of Drazin Inverse. Annals OR, 103(1-4):371-378, 2001. [doi]
Abstract is missing.