letters to the editor\(\def\hfill{\hskip 5em}\def\hfil{\hskip 3em}\def\eqno#1{\hfil {#1}}\)

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CRYSTALLOGRAPHY
ISSN: 1600-5767

Response to de Graaff & de Gelder's comment on CRUNCH: a phase refinement program for high-resolution macromolecular structures

aHauptman-Woodward Medical Research Institute Inc., 73 High Street, Buffalo, New York 14203-1196, USA, and bRoswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, New York 14263, USA
*Correspondence e-mail: langs@hwi.buffalo.edu

(Received 19 May 2000; accepted 8 June 2000)

We regret that we forgot that the program name CRUNCH (Langs et al., 2000[Langs, D. A., Blessing, R. H. & Smith, G. D. (2000). J. Appl. Cryst. 33, 174-175.]) had been associated with the direct-methods work based on Karle–Hauptman determinants as described in the above letter by de Graaff & de Gelder (2000[Graaff, R. A. G. de & de Gelder, R. (2000). J. Appl. Cryst. 33, 1194.]).

We have adopted the name CROQUE for future reference to our program.

References

First citationGraaff, R. A. G. de & de Gelder, R. (2000). J. Appl. Cryst. 33, 1194. Web of Science CrossRef IUCr Journals
First citationLangs, D. A., Blessing, R. H. & Smith, G. D. (2000). J. Appl. Cryst. 33, 174–175. Web of Science CrossRef CAS IUCr Journals

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Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
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