The acceptors behavior in the Single and Double Doped Bi12TiO20
Petkova, P., Vasilev, P., Gul, Gulsah Celik, Mustafa, M., Parushev, I.
Absorption structure of Rh4+ in doped Bi12TiO20
Petkova, P., Boubaker, K.
Mazer’s theory application in Bi4Ge3O12:V
Petkova, P., Vasilev, P., Bedzhev, B., Belcheva, R.