On the spectra of tricyclic graphs. - Ruifang Liu; Huicai Jia; Jinlong Shu (Ars Comb., 2011)

Some graft transformations and its applications on the distance spectral radius of a graph. - Guanglong Yu; Huicai Jia; Hailiang Zhang; Jinlong Shu (Appl. Math. Lett., 2012)

Minimizing the least eigenvalue of bicyclic graphs with k pendant vertices. - Ruifang Liu; Huicai Jia; Jinlong Shu (Ars Comb., 2012)

Tree with minimal Laplacian spectral radius and diameter n-4. - Ruifang Liu; Huicai Jia; Jinjiang Yuan (Ars Comb., 2013)

Wiener index and Harary index on Hamilton-connected and traceable graphs. - Huicai Jia; Ruifang Liu; Xue Du (Ars Comb., 2018)

Spectral versions on Lovász's (a,b)-parity factor theorem in graphs. - Huicai Jia; Jing Lou; Ruifang Liu (Discret. Appl. Math., 2025)