1. Research and development leading to the high-power vacuum interrupter - a historical review;Cobine;IEEE Trans. Power Ap. Syst.,1963
2. Vacuum Switchgear
3. Christian , R. Paolo , G. Kim , H. 2003 The Integrated MV Circuit-Breaker - a New Device Comprising Measuring, Protection and Interruption. 17th Int. Conf. on Electr. Distr., Barcelona