Kamai; Chisamowa
Zhurnal Obshchei Khimii, 1956 , vol. 26, p. 126,128;engl.Ausg.S.125

Chernokal'skii,B.D. et al.
J. Gen. Chem. USSR (Engl. Transl.), 1966 , vol. 36, p. 1673 - 1676,1670 - 1673

Nikitin, E. V.; Kazakova, A. A.; Parakin, O. V.; Chadaeva, N. A.; Kargin, Yu. M.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1981 , vol. 30, # 9 p. 1784
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1981 , vol. 30, # 9 p. 2169

Chisamowa; Kamai
Bulet.Inst.politehn.Iasi<N.S.>Chem.Abstr., 4 Nr.1-2<1958>153,156,157 1960 , p. 279

Gigauri, R. D.; Chavchanidze, N. G.
Journal of General Chemistry USSR (English Translation), 1990 , vol. 60, p. 2235 - 2236
Zhurnal Obshchei Khimii, 1990 , vol. 60, p. 2499 - 2501

Lawesson
Arkiv foer Kemi, 1957 , vol. 10, p. 171,172,175