1. A. F. Ioffe, in Semiconductor Thermoelements and Thermoelectric Cooling (Infosearch, London, 1956).
2. H. J. Goldsmid and R. W. Douglas, Br. J. Appl. Phys. 5, 386, 458 (1954).
3. H. J. Goldsmid, in Electronic Refrigeration (Pion, London, 1986).
4. A. F. Ioffe, S. V. Airapetyants, A. V. Ioffe, N. V. Kolomoets, and L. S. Stil’bans, Dokl. Akad. Nauk SSSR 102, 981 (1956).
5. L. D. Hicks, T. C. Harman, X. Sun, and M. S. Dresselhaus, Phys. Rev. B 53, 10493 (1996).