1. T.E. Whall and E.H.C. Parker, Proc. First European Conf. on Thermoelectrics, ed. D.M. Rowe (London: Peter Peregrinus Ltd., 1987), pp. 51–63.
2. S.B. Horn, Proc. of the 1st National Thermogenic Cooler Conf. (Fort Belvoir, VA: Center for Night Vision and Electro-Optics, 1992).
3. T.C. Harman, U.S. patent 5,415,699 (May 16, 1995);
4. U.S. patent 5,900,071 (May 4, 1999).
5. L.D. Hicks and M.S. Dresselhaus, Phys. Rev. B 47, 12727 (1993).