Citation: Reinauer, F.; Glaum, R.; Gruehn, R. (1994). Preparation and chemical vapour transport of mixed valent titanium(III, IV)-phosphates. With a note on the crystal structure of titanium(IV)-orthophosphate Ti~5~P~4~O~20~. European Journal of Solid State and Inorganic Chemistry, 31, pp. 779-791.