H. J. Crawford, E. Shibamura, T. Doke et al.|Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment|1987
J. Engelage, Herman Yee, M. Baumgartner et al.|Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment|1989