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.
Guilong Liu, Ying Sai. Invertible approximation operators of generalized rough sets and fuzzy rough sets. Inf. Sci., 180(11):2221-2229, 2010. [doi]
Abstract is missing.