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Acta Crystallographica. Section A, Foundations of Crystallography|July 1, 1988
Direct methods: the identification of space-group-specific inconsistent three-phase structure invariantsF Han, D A LangsActa Crystallographica. Section A, Foundations of Crystallography|July 1, 1995
Efficient methods for the linearization and solution of phase-invariant equationsD A Langs, F HanActa Crystallographica. Section A, Foundations of Crystallography|September 1, 1988
Direct methods: the identification of conditions which simplify the generation of inconsistent quadrupolesD A Langs, F HanActa Crystallographica. Section A, Foundations of Crystallography|March 1, 1992
An efficient molecular-replacement translation function based on the evaluation of direct-methods phase invariantsD A LangsScience (New York, N.Y.)|July 8, 1988
Three-dimensional structure at 0.86 A of the uncomplexed form of the transmembrane ion channel peptide gramicidin AD A LangsActa Crystallographica. Section A, Foundations of Crystallography|March 5, 1998
Reinvestigation of the use of Patterson maps to extrapolate data to higher resolutionD A LangsActa Crystallographica. Section A, Foundations of Crystallography|May 1, 1993
Frequency statistical method for evaluating cosine invariants of three-phase relationshipsD A LangsActa Crystallographica. Section D, Biological Crystallography|January 1, 1993
Ab initio direct methods: practical advice for getting beyond the first 300 atomsD A LangsActa Crystallographica. Section A, Foundations of Crystallography|September 1, 1991
The direct determination of phase invariants provided by diffraction data measured at two different temperaturesD A LangsPageof 59