Data:L11a507/PD Presentation

X₈₁₉₂ X_18,12,19,11 X_10,4,11,3 X_2,20,3,19 X_16,8,17,7 X_20,9,21,10 X_12,18,7,17 X_22,16,13,15 X_14,6,15,5 X_4,14,5,13 X_6,21,1,22