A counterexample for Hilton-Johnson's conjecture on list coloring of graphs. - Changiz Eslahchi; Hossein Hajiabolhassan; Mojtaba L. Mehrabadi; Ruzbeh Tusserkani (Australas. J Comb., 1998)

On clique polynomials. - Hossein Hajiabolhassan; Mojtaba L. Mehrabadi (Australas. J Comb., 1998)

A characterization of uniquely vertex colorable graphs using minimal defining sets. - Hossein Hajiabolhassan; Mojtaba L. Mehrabadi; Ruzbeh Tusserkani; Manouchehr Zaker (Discret. Math., 1999)

A Note on the Hall-Condition Number of a Graph. - Hossein Hajiabolhassan; Mojtaba L. Mehrabadi; Ruzbeh Tusserkani (Ars Comb., 2000)

Minimal coloring and strength of graphs. - Hossein Hajiabolhassan; Mojtaba L. Mehrabadi; Ruzbeh Tusserkani (Discret. Math., 2000)

Tabular graphs and chromatic sum. - Hossein Hajiabolhassan; Mojtaba L. Mehrabadi; Ruzbeh Tusserkani (Discret. Math., 2005)