@inproceedings{Brown:20013P, author = "Brown, Robert and Bell, K W and Cockerill, D J-A and Flower, P S and Kennedy, B W and Lintern, A L and Sproston, M and Williams, J H and Hobson, P R and Imrie, D C and Sharif, O", title = "{The Vacuum Phototriodes for the CMS Electromagnetic Calorimeter }", doi = "10.22323/1.007.0255", booktitle = "Proceedings of International Europhysics Conference on High Energy Physics {\textemdash} PoS(hep2001)", year = 2001, volume = "007", pages = "255" }