Papers appear in date order, starting with the most recent.
Within a single year, papers are ordered on the first-named member of department and title. Bibliography 1 R. C. Clark and J. S. Reid. The program uses a mathematically exact method for calculating these quantities from given crystal data. Although written for x-ray scattering, the programme is relevant to other scattering provided the underlying assumptions are valid. Excellent accuracy is obtained for a very wide range of absorption coefficients.