Rigidity and the Alexandrov-Fenchel Inequality.
Rigidity of infinite disk patterns.
Rigidity of planar tilings.
Rigidity of planar tilings (Erratum).
r-zugängliche Unterdeckungen der Ebene durch kongruente Kreise. I.
r-zugängliche Unterdeckungen der Ebene durch kongruente Kreise. II.
Sausages are Good Packings.
Sections of simplices.
Self-Packing of Centrally Symmetric Convex Bodies in R2 .
Self-Similar Lattice Tillings.
Semimatroids and their Tutte polynomials.
Sets with large Borsuk number.
Shape tiling.
Shelling Pseudopolyhedra.
Simple polygons with an infinite sequence of deflations.
Simulated factorizations II.
Singular points of a convex tiling.
Six little squares and how their numbers grow.
Six lonely runners.
Solid Circle-Packings in the Euclidean Plane.