Citation: Christophe Muller; Jean-Louis Baudour; V\'eronique Madigou; Fran\,coise Bouree; Jean-Michel Kiat; Claude Favotto; Marc Roubin (1999). Temperature--Dependent Neutron Powder Diffraction Evidence for Splitting of the Cationic Sites in the Ferroelectric PbHf~0.4~Ti~0.6~O~3~. Acta Crystallographica, Section B, 55, pp. 8-16.