Data:L10a87/PD Presentation

X₈₁₉₂ X_20,9,7,10 X₆₇₁₈ X_2,11,3,12 X_12,3,13,4 X_16,5,17,6 X_18,13,19,14 X_14,17,15,18 X_4,15,5,16 X_10,19,11,20