issue contents
May 2002 issue

Cover illustration: Electrostatic equilibrium of simultaneous Coulomb attraction and core repulsion for an ensemble ; the conjoint centroids, shown in yellow, characterize force-free positions of the fragment inside the unit cell. For comparison, the pure Coulomb equilibrium is shown in the background. See Mädler, Behrends & Knorr [Acta Cryst. (2001). A57, 20-23].
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