A general approach to attribute reduction in rough set theory.

WenXiu Zhang GuoFang Qiu WeiZhi Wu A general approach to attribute reduction in rough set theory. 188-197 2007 50 Science in China Series F: Information Sciences 2 http://dx.doi.org/10.1007/s11432-007-0017-6 db/journals/chinaf/chinaf50.html#ZhangQW07