Data:L11a167/PD Presentation

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