1. Ahmed, F. R. & Pippy, M. E. (1968) NRC crystallographic programs: Absorption correction (NRC-3), Scan of interatomic distances and angles (NRC-12), Mean plane (NRC-22). World list of Crystallographic Computer Programs. 2nd ed. Appendix, p. 52.
2. Amanov, A. Z., Kukina, G. A. & Porai-koshits, M. A. (1967)Zh. Struct. Khim. 8, 174.
3. Beurskens, P. T. (1968) A Fourier computer program. (Unpublished work.)
4. Beurskens, P. T., Noordik, J. H. & Bosman, W. P. J. H. (1969) Fortran computer programs for setting angles and data reduction for the Nonius automatic diffractometer. (Unpublished work.)
5. Bonamico, M., Dessy, G., Mariani, C., Vaciago, A. & Zambonelli, L. (1965)Acta Crystallogr. 19, 619.