TY - JOUR AU - Angelopoulos, E. TI - On unitary irreducible representations of semidirect products with nilpotent normal subgroup JO - Annales de l'institut Henri Poincaré. Section A, Physique Théorique PY - 1973 SP - 39 EP - 55 VL - 18 IS - 1 PB - Gauthier-Villars UR - http://www.numdam.org/item/AIHPA_1973__18_1_39_0/ LA - en ID - AIHPA_1973__18_1_39_0 ER -