1. Good Thermoelectrics
2. Complex thermoelectric materials
3. S.Paschen, in Thermoelectric handbook, ed. D. M. Rowe, CRC Press, Taylor & Francis Group, Boca Raton, 2006, Chap. 15
4. Thermoelectric Materials: New Approaches to an Old Problem
5. D.Jaccard and J.Sierro, in Valence Instabilities eds., P. Wachter and H. Boppart, North Holland, Amsterdam, 1982