Data:10 134/PD Presentation

X₄₂₅₁ X₈₄₉₃ X_9,15,10,14 X_5,13,6,12 X_13,7,14,6 X_11,19,12,18 X_15,1,16,20 X_19,17,20,16 X_17,11,18,10 X₂₈₃₇