Bi1.72 O3 Sr0.53 Boivin J, Thomas D Solid State Ionics 3 (1981) 457-462 Structural investigations on bismuth-based oxides _cod_database_code 1004071 _database_code_amcsd 0015498 3.971 3.971 28.41 90 90 120 R-3m atom x y z occ Sr1 0 0 0 .706 Bi1 0 0 0 .295 Bi2 0 0 .2240 O1 0 0 .2946 O2 0 0 .0991