M. Nespolo Recent Aspects of the Theory of Oriented Crystal Associations Download Abstract R. Herbst-Irmer Non-merohedral Twinning in Small Molecule and Protein Crystallography Download Abstract C. Viti, M. Logar, M. Mellini, E. Mugnaioli Additional Reflections and Polytypic Sequences in Polygonal Serpentine Download Abstract D. Pinto, E. Bonaccorsi, E. Makovicky, T. Bali?-Žuni? Order-disorder, Polytypes and Twinning in the Crystal Structure of Vurroite Download Abstract A. Arakcheeva, G. Chapuis Simulation of a Polytypic Family from an Incommensurately Modulated Member Download Abstract