[n] W. Kalbreier, N. Garrel, M. Laffin, V. Mertens, G. Rogner, and G. von Holtey, “Commissioning and Operating Experience with the Electrostatic Beam Separation System of the LEP ee- Collider”, in Proc. EPAC'90, Nice, France, Jun. 1990, pp. 815-818.
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