Data:L10a72/PD Presentation

X₈₁₉₂ X_10,3,11,4 X_14,17,15,18 X_16,5,17,6 X_4,15,5,16 X_18,11,19,12 X_20,13,7,14 X_12,19,13,20 X₂₇₃₈ X_6,9,1,10