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.
William Zhu. Relationship among basic concepts in covering-based rough sets. Inf. Sci., 179(14):2478-2486, 2009. [doi]
Abstract is missing.