Acyclic orientation polynomials and the sink theorem for chromatic symmetric functions. - Byung-Hak Hwang; Woo-Seok Jung; Kang-Ju Lee; Jaeseong Oh; Sang-Hoon Yu (J. Comb. Theory B, 2021)

Dualities and reciprocities on graphs on surfaces. - Woo-Seok Jung; Jaeseong Oh (Discret. Math., 2022)