Data:L11a503/PD Presentation

X₈₁₉₂ X_2,9,3,10 X_10,3,11,4 X_14,5,15,6 X_18,12,19,11 X_12,18,7,17 X_20,16,21,15 X_22,20,13,19 X_16,22,17,21 X₆₇₁₈ X_4,13,5,14