TY - BOOK AU - Avakian,V.V. AU - Keropian,M.I. AU - Mamidjanian,E.E. ED - Yerevan Physical Institut TI - An analysis of the theoretical and experimental data on the multiplicity of secondary particles for nucleon - nucleon and pion - nucleon interactions of high energies PY - 1972/// CY - Yerevan PB - S. n. KW - Physics ER -