Citation: Calleri, M.; Gazzoni, G. (1976). The structures of (Sr, Ba) ( (Al, Ga)2 (Si, Ge)2 O8). III. The crystal structures of the paracelsian-like modifications of synthetic Sr Ga2 Ge2 O8 and Ba Ga2 Ge2 O8. Acta Crystallographica B (24,1968-38,1982), 32, pp. 1196-1205.