1. P.G. Slade, The Vacuum Interrupter: Theory, Design, and Application (London: CRC Press Inc, 2007).
2. E. Walczuk, Proceedings of the Thirty-Eighth IEEE Holm Conference on Electrical Contacts (1992), pp. 1–16.
3. Z.B. Li, L.C. Chen, and J.Y. Zou, Proceedings of the Forty-First IEEE Holm Conference on Electrical Contacts (1995), pp. 346–349.
4. B.G. Qian, H.R. Geng, and Z.Q. Guo, J. Rare Earths 23, 378 (2005).
5. P.G. Slade, ed. Electrical Contacts (Marcel Dekker Inc., New York, 1999).