[n] M. K. Craddock, “Proper and Improper Accelerators - In Praise of Cyclotrons and Their Builders”, in Proc. Cyclotrons'92, Vancouver, Canada, Jul. 1992, paper XV-01, pp. 765-769.
[n] M. K. Craddock, “Polarized Ion Sources for Cyclotrons”, in Proc. Cyclotrons'66, Gatlinburg, TN, USA, Aug. 1966, paper C-001, pp. XX-XX.
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