1. A. P. Kreshkov, Report to the Eighth Mendeleev Congress, Abstracts of Reports of the Analytical Chemistry Section [in Russian] 3, 34 (1958).
2. N. A. Izmailov, The Electrochemistry of Solutions [in Russian] (Kharkov, Gorkii Kharkov State University Press, 1959).
3. A. P. Kreshkov, A Manual on Acid-Base Titration in Nonaqueous Media [in Russian] (Moscow, D. I. Mendeleev Moscow Institute of Chemical Technology Press, 1958).
4. R. Shanti, Palit, Mekhr Natkh Das and G. R. Somayadzhulu, Nonaqueous Titration [in Russian] (Moscow, State Chemistry Press, 1958).
5. C. Hennart and E. Merlin, Chim. analyt.40, 5, 167 (1958).