Chromatic uniqueness of the complements of certain forests. - Nianzu Li; Xue-Wen Bao; Ru-Ying Liu (Discret. Math., 1997)

Adjoint polynomials and chromatically unique graphs. - Ru-Ying Liu (Discret. Math., 1997)

A new method for proving chromatic uniqueness of graphs. - Ru-Ying Liu; Lian-Chang Zhao (Discret. Math., 1997)

Chromaticity of a family of K4-homeomorphs. - Yan-ling Peng; Ru-Ying Liu (Discret. Math., 2002)