Growth and characterization of photorefractive 'BI IND.12''TI''O IND.20' single crystals - Prokofiev, V V; Carvalho, J F; Andreeta, José Pedro; Gallo, Nelson José Heraldo; Hernandes, Antônio Carlos; Frejlich, J; Freschi, A A; Garcia, P M; Maracaiba, J; Kamshilin, A A; Jaaskelainen, T (Crystal Research and Technology, 1995)