Data:L10a173/PD Presentation

X₆₁₇₂ X_12,3,13,4 X_20,13,17,14 X_16,19,11,20 X_18,7,19,8 X_8,16,9,15 X_14,10,15,9 X_10,17,5,18 X₂₅₃₆ X_4,11,1,12