TY - Computer Engineering and Applications A1 - CHEN Juan, HAN Yonghua, LEI Yuxia T1 - Revision and acquisition of history knowledge based on multiple text knowledge sources Y1 - 2015-09-15 JF - Computer Engineering and Applications JO - Computer Engineering and Applications SP - 135 EP - 139 VL - 51 IS - 18 UR - http://cea.ceaj.org N1 - ER -