Yalin Zheng Xiaoping Zou Ning Wang Jing Zheng Ji Ouyang Knowledge Mass and Multiple Approximate Reasoning in Type I Topological Logic C<sup>1</sup> <sub>T</sub>. 185-189 2007 FSKD (1) http://dx.doi.org/10.1109/FSKD.2007.377 conf/fskd/2007-1 db/conf/fskd/fskd2007-1.html#ZhengZWZO07