1. After: E. Mulder and I. Muller Rodloff, Ann. 517 (1935) 134; E. Muller and E. Hertel, Ann. 554 (1943) 213; 555 (1944) 157; E. Muller and H. Pfauz, Ber. 74 (1941) 1051–1075.
2. See on this subject: D. D. Eley and M. G. Evans, Trans. Far. Soc. 34 (1938) 1112.
3. M. Born, Z. Phys. 1 (1920) 45.
4. W. M. Latimer, K. S. Pitzer, and C. M. Slansky, J. Chem. Phys. 7 (1939) 108.
5. B. Noyes, J. Am. Chem. Soc. 86 (1962) 513; 86 (1964) 971.