Cristiano, M. Lurdes S.; Johnstone, Robert A. W.; Pratt, Michael J.
Acta Crystallographica, Section C: Crystal Structure Communications, 1995 , vol. 51, # 12 p. 2581 - 2583
Baseer, Muhammad; Saeed, Aanier; Samra, Shahid A.; Ashraf, Zaman; Ansari, Farzana L.
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