The following publications are possibly variants of this publication:
- The competition number of a graph having exactly one holeHan Hyuk Cho, Suh-Ryung Kim. DM, 303(1-3):32-41, 2005. [doi]
- The competition number of a graph with exactly two holesJung-Yeun Lee, Suh-Ryung Kim, Seog-Jin Kim, Yoshio Sano. arscom, 95, 2010.
- The competition number of a graph and the dimension of its hole spaceSuh-Ryung Kim, Jung-Yeun Lee, Boram Park, Yoshio Sano. appml, 25(3):638-642, 2012. [doi]