Further results on the Merrifield-Simmons index. - Hongbo Hua; Xinying Hua; Hongzhuan Wang (Discret. Appl. Math., 2020)

Relating the total domination number and the annihilation number for quasi-trees and some composite graphs. - Hongbo Hua; Xinying Hua; Sandi Klavzar; Kexiang Xu (Discret. Math., 2022)

Relating the annihilation number and the total domination number for some graphs. - Xinying Hua; Kexiang Xu; Hongbo Hua (Discret. Appl. Math., 2023)

Further results on the mixed metric dimension of graphs. - Hongbo Hua; Yaojun Chen; Xinying Hua (Discret. Appl. Math., 2025)

Minimum bull-saturated graphs. - Xinying Hua; Yuejian Peng (Discret. Math., 2026)