TY - JOUR AU - Bertrand, J. TI - On the decomposition of the tensorial product of two representations of the Poincaré group - Case with at least one imaginary mass JO - Annales de l'institut Henri Poincaré. Section A, Physique Théorique PY - 1970 SP - 163 EP - 194 VL - 13 IS - 2 PB - Gauthier-Villars UR - http://archive.numdam.org/item/AIHPA_1970__13_2_163_0/ LA - en ID - AIHPA_1970__13_2_163_0 ER -