What can clusters tell us about the bulk?: Peacemaker: Extended quantum cluster equilibrium calculations. - Barbara Kirchner; Christian Spickermann; Sebastian B. C. Lehmann; Eva Perlt; Johanna Langner; Michael von Domaros; Patricia Reuther; Frank Uhlig; Miriam Kohagen; Marc Brüssel (Comput. Phys. Commun., 2011)

Equivalence between Clar covering polynomials of single zigzag chains and tiling polynomials of 2×n rectangles. - Johanna Langner; Henryk A. Witek (Discret. Appl. Math., 2018)

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

Clar Covers of Overlapping Benzenoids: Case of Two Identically-Oriented Parallelograms. - Henryk A. Witek; Johanna Langner (Symmetry, 2020)

Extended strict order polynomial of a poset and fixed elements of linear extensions. - Johanna Langner; Henryk A. Witek (Australas. J Comb., 2021)