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2. Beurskens, P.T., 1964, A computer procedure for the systematic application of Sayre’s equation for solving the phase problem for the analysis of centrosymmetric structures, Acta Cryst., 17:462.
3. Beurskens, P.T., 1965, Thesis, University of Utrecht, The Netherlands.
4. Beurskens, P.T., 1987, Comments on From a partial to the complete crystal structure. IL The procedure and its applications, by M. Camalli, C. Giacovazzo & R. Spagna, 1985, Acta Cryst., A43:283.
5. Beurskens, P.T., Beurskens, G., Strumpel, M., and Nordman, C.E., 1987, Automation of rotation functions in vector space, in Patterson and Pattersons, edited by Glusker, J.P., Patterson, B.K., and Rossi, M., Oxford University Press, New York.