Rong Zheng Yi Qin Zan Huang Hsinchun Chen Authorship Analysis in Cybercrime Investigation. 59-73 2003 conf/isi/2003 ISI http://link.springer.de/link/service/series/0558/bibs/2665/26650059.htm db/conf/isi/isi2003.html#ZhengQHC03