On generalized competition index of a primitive tournament. - Min Soo Sim; Hwa Kyung Kim (Discret. Math., 2011)

Generalized competition indices of symmetric primitive digraphs. - Hwa Kyung Kim; Sang Hoon Lee (Discret. Appl. Math., 2012)

Symmetric alternating sign matrices. - Richard A. Brualdi; Hwa Kyung Kim (Australas. J Comb., 2014)

On the generalized competition index of a regular or almost regular tournament. - Min Soo Sim; Hwa Kyung Kim (Ars Comb., 2014)

Completions of Alternating Sign Matrices. - Richard A. Brualdi; Hwa Kyung Kim (Graphs Comb., 2015)