Citation: Corbel, Gwena\"el; Suard, Emmanuelle; Lacorre, Philippe (2011). Structural Key of the Thermal Expansion and the Oxide Ionic Conduction in Derivatives of La2Mo2O9: a Temperature-Controlled Neutron Diffraction Study of \b-La1.7Bi0.3Mo2O9. Chemistry of Materials, 23, pp. 1288-.