For tetragonal lattice complexes with three degrees of freedom the sphere-packing conditions, the generation classes and the (topological) types of sphere packings are tabulated. The use of the table is illustrated by means of two structural examples.
Zeitschrift für Kristallographie – Crystalline Materials offers a place for researchers to present results of their crystallographic studies. The journal includes theoretical as well as experimental research. It publishes Original Papers, Letters and Review Articles in manifold areas of crystallography.