1. O. Knop, K. I. G. Reid, S. Sutarno andY. Nakagawa,Canad. J. Chem. 46 (1968) 3463.
2. L. M. Ardrushkevich, L. M. Plyasova, A. Ostankovich, G. K. Boreskov, L. M. Kefeli, V. V. Popovskii andE. D. Grazhadannikov,Metody Issled. Katal. Reakts. Akad. Nauk. SSSR, Sib. Otd., Inst. Katal. 3 (1965) 333; (Chem. Abs. 68.26382 e).
3. J. Robin,Ann. Chim. 10 (1955) 395.
4. M. Temkin,Acta Physicochim, U.R.S.S. 20 (1945) 411.
5. O. Kubaschewski andE. Ll. Evans, ldMetallurgical Thermochemistry? (Pergamon Press, London, 1965) p. 337.