Fraser, R. T. M.; Lee, R. N.; Hayden, K. (1967). "The europium(II) ion reduction of nitrite and nitropenta-amminecobalt(III) ions". Journal of the Chemical Society A: Inorganic, Physical, Theoretical: 741. doi:10.1039/J19670000741.
handle.net
hdl.handle.net
Suekichi, ABE; Taijiro, OKABE (10 February 1953). "On the Electrolysis of Liquid Ammonia Solution of Alkali Nitrates". The Chemical Research Institute of Non-Aqueous Solutions: 189–201. hdl:10097/26573.