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.
Tzung-Pei Hong, Chun-E Lin, Jiann-Horng Lin, Shyue-Liang Wang. Learning cross-level certain and possible rules by rough sets. Expert Syst. Appl., 34(3):1698-1706, 2008. [doi]
Abstract is missing.