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2. EMI Photomultiplier Catalog 1979, EMI Industrial Electronics, Ltd., Bury Street, Ruslip, Middlesex, HA4 7TA, England
3. Photomultiplicateurs, RTC Photomultiplicateurs, 130 Av. Ledru-Rollin, 75540, Paris CEDEX 11, France
4. S. Dhawan: IEEE Trans. Nucl. Sci. NS-28, 672 (1981)
5. C. C. Lo, B. Leskovar: IEEE Trans. Nucl. Sci. NS-28, 698 (1981); E. Gatti, K. Oba, P. Rehak: IEEE Trans. Nucl. Sci NS-30, 461 (1983)