Citation: Fuertes, A; Miravitilles, C; Gonzales-Calbet, J; Vallet-Regi, M; Obradors, X; Rodriguez-Carvajal, J (1989). The tubular crystal structure of the new phase Bi~4~ Sr~8~ Cu~5~ O~19+x~ related to the supercoducting perovskites. Physica C (Amsterdam) (152,1988-), 157, pp. 525-530.
Formula: Bi4 Cu5 O20.5 Sr8
Chemical name:Bismuth strontium copper oxide (4/8/5/20.5)