Invalid proofs on incidence coloring. - Wai Chee Shiu; Pak Kiu Sun (Discret. Math., 2008)

Some results on incidence coloring, star arboricity and domination number. - Pak Kiu Sun; Wai Chee Shiu (Australas. J Comb., 2012)

On the total restrained domination number of direct products of graphs. - Hong-Yu Chen; Xue-Gang Chen; Wai Chee Shiu; Pak Kiu Sun (Discuss. Math. Graph Theory, 2012)

The strong game colouring number of directed graphs. - Wai Hong Chan; Wai Chee Shiu; Pak Kiu Sun; Xuding Zhu (Discret. Math., 2013)

Circular L(j, k)-labeling number of direct product of path and cycle. - Qiong Wu; Wai Chee Shiu; Pak Kiu Sun (J. Comb. Optim., 2014)

(2, 1)-total labeling of trees with large maximum degree. - Dong Chen 012; Wai Chee Shiu; Qiaojun Shu; Pak Kiu Sun; Weifan Wang 001 (Discret. Appl. Math., 2015)

L(j, k)-labeling number of Cartesian product of path and cycle. - Qiong Wu; Wai Chee Shiu; Pak Kiu Sun (J. Comb. Optim., 2016)

On the anti-Kekulé problem of cubic graphs. - Qiuli Li; Wai Chee Shiu; Pak Kiu Sun; Dong Ye 002 (Art Discret. Appl. Math., 2019)