Citation: Joacim C. M. Gustafsson; Stefan T. Norberg; G\"oran Svensson; J\"orgen Albertsson (2005). Two new phosphate langbeinites, Rb~2~YbTi(PO~4~)~3~ and Rb~2~Yb~0.32~Ti~1.68~(PO~4~)~3~, investigated at 293 and 150K. Acta Crystallographica Section C, 61, pp. i9-i13.