Data:10 109/PD Presentation

X₆₂₇₁ X_10,4,11,3 X_18,11,19,12 X_16,7,17,8 X_8,17,9,18 X_20,15,1,16 X_12,19,13,20 X_14,6,15,5 X_2,10,3,9 X_4,14,5,13