Efendiev, Sh. M.; Kulieva, T. Z.; Lomonov, V. A.; Chiragov, M. I.; Grandolfo, M.; Vecchia, P. (1982). "Crystal Structure of Bismuth Titanium Oxide Bi12TiO20". Physica Status Solidi A. 74 (1): K17–K21. Bibcode:1982PSSAR..74...17E. doi:10.1002/pssa.2210740148.
Efendiev, Sh. M.; Kulieva, T. Z.; Lomonov, V. A.; Chiragov, M. I.; Grandolfo, M.; Vecchia, P. (1982). "Crystal Structure of Bismuth Titanium Oxide Bi12TiO20". Physica Status Solidi A. 74 (1): K17–K21. Bibcode:1982PSSAR..74...17E. doi:10.1002/pssa.2210740148.