This paper cited by :
"Direct photon identification with artificial neural network in the photon spectrometer PHOS "
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M.Yu. Bogolyubsky, Yu.V. Kharlov and S.A. Sadovsky, e-Print: physics/0410277, October 2004; see, also, https://edms.cern.ch/document/406291/2
"Direct photon identification with artificial neural network in the photon spectrometer PHOS "
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M.Yu. Bogolyubsky, Yu.V. Kharlov and S.A. Sadovsky, NIM, A502 (2003) 719
"Polarization in charge exchange reaction pi^-+p->pi^0+n at 40 GeV/c for the 4-momentum transfer range 0<|t|<2 (GeV/c)"
, V. D. Apokin, et al., Zeitschrift fur Physik C Particles and Fields, Volume 15, Number 4 / December, 1982, pp. 293-298