D. DeProspo, S.I. Lyutov, A. Andryakov et al.|Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields|1994
M. Aderholz, G. Myatt, M. M. Aggarwal et al.|Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment|1999