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K. H. Lou, J. M. Hauptman, and J. E. Walter, “High-Quality Narrow Quadrupole Magnets”, in Proc. 3rd Particle Accelerator Conf. (PAC'69), Washington D.C., USA, Mar. 1969, pp. 736-738. |
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J. E. Walter, “Large Rectangular Vacuum Windows”, in Proc. 5th Particle Accelerator Conf. (PAC'73), San Francisco, CA, USA, Mar. 1973, pp. 125-127. |
