TY - JOUR A1 - Müller-Veggian, Mattea A1 - Gono, Y. A1 - Lieder, R. M. A1 - Neskakis, A. T1 - Particle-hole symmetry observed in the angular distributions of γ-rays in ¹⁸⁹,¹⁹¹,¹⁹³ Au JF - Physics letters / B. 70 (1977), H. 2 Y1 - 1977 SN - 0031-9163 SP - 159 EP - 162 ER -