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The Executive Secretary of the IUCr (Mr M. H. Dacombe) may be contacted at:
International Union of Crystallography
2 Abbey Square
CHESTER
CH1 2HU
England
Telephone: International dialing prefix + 44 (1244) 345431
Fax: International dialing prefix + 44 (1244) 344843
Telex: 669755 OFFICE G attn UNICRYSTAL
E-mail: execsec@iucr.org
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