A note on the permanental roots of bipartite graphs. - Wei Li 063; Shunyi Liu; Heping Zhang (Discuss. Math. Graph Theory, 2014)

On the (Signless) Laplacian Permanental Polynomials of Graphs. - Shunyi Liu (Graphs Comb., 2019)

Generalized Permanental Polynomials of Graphs. - Shunyi Liu (Symmetry, 2019)

Graphs with n-1 main eigenvalues. - Zenan Du; Fenjin Liu; Shunyi Liu; Zhongmei Qin (Discret. Math., 2021)