The Minimum Dilatation of Pseudo-Anosov 5-Braids. - Ji-Young Ham; Won Taek Song (Exp. Math., 2007)

Code design for type-I wiretap channel thanks. - Myounghae Hyun; Won Taek Song; Jinho Choi 001; Seungjae Yoo; Jeongseok Ha (Allerton, 2011)

Perfect Secrecy Over Binary Erasure Wiretap Channel of Type II. - Won Taek Song; Jinho Choi 001; Jeongseok Ha (IEEE Trans. Inf. Forensics Secur., 2012)