Citation: Battle, P.D.; Catlow, C.R.A.; Moroney, L.M. (1987). Structural and dynamical studies of delta Bi2 O3 oxideion conductors. II. A structural and comparison of (Bi2 O3)1-x (M2 O3)x for M = Y, Er, and Yb. Journal of Solid State Chemistry, 67, pp. 42-50.