On the enumeration of certain weighted graphs. - Miklós Bóna; Hyeong-Kwan Ju; Ruriko Yoshida (Discret. Appl. Math., 2007)

Enumeration of (0, 1)-matrices avoiding some 2×2 matrices. - Hyeong-Kwan Ju; Seunghyun Seo (Discret. Math., 2012)