by Heng-xu Ha, Bao-hui Zhang, Lv, Z.-l.
Published in IEEE transactions on power delivery (01.10.2003)

by Cong, Wei, Sun, Yun, Lu, Qing-Dong, Ha, Heng-Xu
Published in Dianli Xitong Baohu yu Kongzhi (16.06.2013)

by Du, Zheng-Wang, Ha, Heng-Xu, Song, Yang, Duan, Yu-Jing, Hu, Xi-Tong
Published in Dianli Xitong Baohu yu Kongzhi (16.08.2010)

by Tan, Yu-Zhen, Ha, Heng-Xu, Duan, Yu-Jing
Published in Dianli Xitong Baohu yu Kongzhi (16.10.2010)

by Du, Zheng-Wang, Zhou, Hai-Quan, Ha, Heng-Xu, Hu, Xi-Tong, Zhong, Chong-Shan
Published in Dianli Xitong Baohu yu Kongzhi (01.04.2011)

by Zhang, Zhi-Qiang, Ha, Heng-Xu, Tan, Yu-Zhen
Published in Dianli Xitong Baohu yu Kongzhi (16.07.2009)

by 丛伟 孙允 路庆东 哈恒旭
Published in 电力系统保护与控制 (2013)

by 谭雨珍, 哈恒旭, 段宇菁
Published in 电力系统保护与控制 (2010)

by 杜正旺, 哈恒旭, 宋扬, 段宇菁, 胡希同
Published in 电力系统保护与控制 (2010)

by 张志强, 哈恒旭, 谭雨珍
Published in 电力系统保护与控制 (2009)

by 杜正旺, 周海全, 哈恒旭, 胡希同, 仲崇山
Published in 电力系统保护与控制 (2011)