E.-C. Koch: Special Materials in Pyrotechnics, Part II: Application of Caesium and Rubidium Compounds in Pyrotechnics. In: J. Pyrotech., 2002, 15, S. 9–24 (AbstractLưu trữ 2011-07-13 tại Wayback Machine).
E.-C. Koch: Special Materials in Pyrotechnics, Part II: Application of Caesium and Rubidium Compounds in Pyrotechnics. In: J. Pyrotech., 2002, 15, S. 9–24 (AbstractLưu trữ 2011-07-13 tại Wayback Machine).