TY - Computer Engineering and Applications A1 - ZHOU Jing T1 - Approaches to knowledge reductions in generalized incomplete systems Y1 - 2008-10-01 JF - Computer Engineering and Applications JO - Computer Engineering and Applications SP - 149 EP - 151 VL - 44 IS - 28 UR - http://cea.ceaj.org N1 - 10.3778/j.issn.1002-8331.2008.28.050 ER -