dear Mr. semamedo,
I really need this articls. the later one are attached in file references.txt.
thank you in advance
1. S. K. Blower and C. Greaves Acta Cryst. (1988). C44, 587-589.
The structure of -Bi2O3 from powder neutron diffraction data
2. A. Shrinagar, A. Garg, R. Prasad and S. Auluck Acta Cryst. (2008). A64, 368-375
Phase stability in ferroelectric bismuth titanate: a first-principles study
3. Johan M. Carlsson, Bo Hellsing, Helder S. Domingos and Paul D. Bristowe, Phys. Rev. B 65, 205122 (2002).
Theoretical investigation of the pure and Zn-doped a and d phases of Bi2O3
Phys. Rev. B -----------> Physical Review B
Acta Cryst. -------------> Acta Crystallographica