Closed-form formulas for the Zhang-Zhang polynomials of benzenoid structures: Prolate rectangles and their generalizations. - Chien-Pin Chou; Jin-Su Kang; Henryk A. Witek (Discret. Appl. Math., 2016)

Zhang-Zhang Polynomials of Ribbons. - Bing-Hau He; Chien-Pin Chou; Johanna Langner; Henryk A. Witek (Symmetry, 2020)

ZZPolyCalc: An open-source code with fragment caching for determination of Zhang-Zhang polynomials of carbon nanostructures. - Rafal Podeszwa; Henryk A. Witek; Chien-Pin Chou (Comput. Phys. Commun., 2024)