1. Bolz, R. E. and Tuve, G. L., eds. 1976.Handbook of Tables for Applied Engineering Science, 2nd edn, 233Boca Raton, FL: CRC Press.
2. Bhattacharya, S. K. 1986.Metal-Filled Polymers - Properties and Applications, 167–175. New York: Marcel Dekker.
3. Ruschan, G. R., Yoshikawa, S. and Newnham, R. E. 1992.1992 Proceedings, 42nd Electronic Components and Technology Conference, 481–486. New York: IEEE.
4. Electric Contacts