1. Krutikov, V.I. and Erkin, A.V., Zh. Obchsh. Khim., 2009, vol. 79, no. 5, p. 813.
2. Perel’man, M.I., Koryakin, V.A., and Bogadel’nikova, I.V., Ftiziatriya (Phthisiology), Moscow: Meditsina, 1996.
3. Buchi, J., Achi, A., Deflorin, A., and Hurni, H., Helv. Chim. Acta, 1956, vol. 39, no. 6, p. 1676.
4. Dawson, R.M.C., Elliott, D.C., Elliott, W.H., and Jones, K.M., Data for Biochemical Research, Oxford: Clarendon, 1986, 3rd ed.