Data:L11a168/PD Presentation

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