中国科学院数学与系统科学研究院期刊网
Entropy of Knowledge and Rough Set Based on General Binary Relation
Bing HUANG;Xian Zhong ZHOU;Yin Chun SHI
Systems Engineering - Theory & Practice . 2004, (1): 93 -96 .  DOI: 10.12011/1000-6788(2004)1-93