D.M. Gassner \emph{et al.},
   "Instrumentation for the Proposed Low Energy RHIC Electron Cooling Project with Energy Recovery",
   in Proc. 3rd International Beam Instrumentation Conference, Monterey, CA, USA, paper MOPF05, pp. 49–54,
    ISBN: 978-3-95450-141-0,
    \url{http://jacow.org/IBIC2014/papers/mopf05.pdf},
    2014.