Data:10 112/PD Presentation

X₆₂₇₁ X₈₃₉₄ X_18,11,19,12 X_20,13,1,14 X_2,16,3,15 X_4,17,5,18 X_12,19,13,20 X_10,6,11,5 X_14,7,15,8 X_16,10,17,9