Quasi-threshold Graphs. - Jing-Ho Yan; Jer-Jeong Chen; Gerard J. Chang (Discret. Appl. Math., 1996)

Distance-two labelings of digraphs. - Gerard J. Chang; Jer-Jeong Chen; David Kuo; Sheng-Chyang Liaw (Discret. Appl. Math., 2007)

Distance graphs on R n with 1-norm. - Jer-Jeong Chen; Gerard J. Chang (J. Comb. Optim., 2007)