Citation: Garc\'ia-Tu\~n\'on, Esther; Dacu\~na, Bruno; Zaragoza, Guillermo; Franco, Jaime; Guiti\'an, Francisco (2012). Cl--OH ion-exchanging process in chlorapatite (Ca~5~(PO~4~)~3~Cl~x~(OH)~1{-~x}) -- a deep insight. Acta Crystallographica Section B, 68, pp. 467-479.