Decompositions, Partitions, and Coverings with Convex Polygons and Pseudo-Triangles. - Oswin Aichholzer; Clemens Huemer; Sarah Kappes; Bettina Speckmann; Csaba D. Tóth (Graphs Comb., 2007)

Orthogonal Surfaces and Their CP-Orders. - Stefan Felsner; Sarah Kappes (Order, 2008)

Binary Labelings for Plane Quadrangulations and their Relatives. - Stefan Felsner; Clemens Huemer; Sarah Kappes; David Orden (Discret. Math. Theor. Comput. Sci., 2010)