Chemical graph-theoretical cluster expansion and diamagnetic susceptibility. - Thomas G. Schmalz; Douglas J. Klein; B. L. Sandleback (J. Chem. Inf. Comput. Sci., 1992)

Graph Invariants for Fullerenes. - Alexandru T. Balaban; Xiaoyu Liu 007; Douglas J. Klein; Darko Babic; Thomas G. Schmalz; William A. Seitz; Milan Randic (J. Chem. Inf. Comput. Sci., 1995)

Graphic Invariants for Fullerenes [J. Chem. Inf. Comput. Sci 35, 396-404 (1995)]. - Alexandru T. Balaban; Xiaoyu Liu 007; Douglas J. Klein; Darko Babic; Thomas G. Schmalz; William A. Seitz; Milan Randic (J. Chem. Inf. Comput. Sci., 1997)

Strain-Free Sextet-Resonant Benzenoids and Their Antisextet Dualists. - Alexandru T. Balaban; Thomas G. Schmalz (J. Chem. Inf. Model., 2006)

Clar Theory for Radical Benzenoids. - Anirban Misra; Thomas G. Schmalz; Douglas J. Klein (J. Chem. Inf. Model., 2009)