Multiplicity of the representation of the Poincare group on the space of two-particle states
English version (Springer): Ukrainian Mathematical Journal 42 (1990), no. 4, pp 495-497.
Citation Example: Reberg I. Multiplicity of the representation of the Poincare group on the space of two-particle states // Ukr. Mat. Zh. - 1990. - 42, № 4. - pp. 559–560.
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