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 Results for DC.creator="J." AND DC.creator="Zhang" in section 15.3.4 of volume F
Phase-extension schemes
Cowtan, K. D., Zhang, K. Y. J. and Main, P.  International Tables for Crystallography (2012). Vol. F, Section 15.3.4.3, pp. 409-410 [ doi:10.1107/97809553602060000849 ]
Phase-extension schemes 15.3.4.3. Phase-extension schemes When performing phase extension, the order in which the structure factors are included will affect the final accuracy of the extended phases. The phases obtained from previous cycles of phase extension will be included in the calculation of new phases for the unphased structure ...

Phase-combination modes
Cowtan, K. D., Zhang, K. Y. J. and Main, P.  International Tables for Crystallography (2012). Vol. F, Section 15.3.4.2, p. 409 [ doi:10.1107/97809553602060000849 ]
... phase. Options are available for both these situations. References Abrahams, J. P. (1997). Bias reduction in phase refinement by modified ... introducing the [gamma] correction. Acta Cryst. D53, 371-376. Abrahams, J. P. & Leslie, A. G. W. (1996). Methods used in ... density-modification calculations. Acta Cryst. D52, 43-48. Read, R. J. (1986). Improved Fourier coefficients for maps using phases ...

Density-modification modes
Cowtan, K. D., Zhang, K. Y. J. and Main, P.  International Tables for Crystallography (2012). Vol. F, Section 15.3.4.1, pp. 408-409 [ doi:10.1107/97809553602060000849 ]
... only applied in special situations. References Chapman, M. S., Tsao, J. & Rossmann, M. G. (1992). Ab initio phase determination for ... refinement for protein crystallography. Methods Enzymol. 277, 269-305. Tsao, J., Chapman, M. S. & Rossmann, M. G. (1992). Ab initio ...

Choice of modes
Cowtan, K. D., Zhang, K. Y. J. and Main, P.  International Tables for Crystallography (2012). Vol. F, Section 15.3.4, pp. 408-410 [ doi:10.1107/97809553602060000849 ]
... reflections may be included from the first cycle. References Abrahams, J. P. (1997). Bias reduction in phase refinement by modified ... introducing the [gamma] correction. Acta Cryst. D53, 371-376. Abrahams, J. P. & Leslie, A. G. W. (1996). Methods used in ... ATPase. Acta Cryst. D52, 30-42. Chapman, M. S., Tsao, J. & Rossmann, M. G. (1992). Ab initio phase determination ...

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