Data:L11a171/PD Presentation

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