1. T. Kajikawa, M. Ozaki, T. Ito, and K. Yamaguchi. Proceedings of the 23rd International Conference on Thermoelectrics (Adelaide, Australia, July 2004), p. 140
2. T. Kajikawa and T. Onishi, Proceedings of the 26th International Conference on Thermoelectrics (Jeju, Korea, 3–7 June 2007), p. 322
3. Project Evaluation Committee, Ex post facto Assessment Report on Development for Advanced Thermoelectric Conversion Systems, Kawasaki, NEDO (2007)
4. H. Takazawa, H. Obara, Y. Okada, K. Kobayashi, T. Onishi, and T. Kajikawa, Proceedings of the 25th International Conference on Thermoelectrics (Wien, Austria, 2006), B01
5. M. Kawai, Nikkei Microdevices 275, 100 (2008)