Data:L10a138/PD Presentation

X₆₁₇₂ X_14,6,15,5 X₈₄₉₃ X_2,16,3,15 X_16,7,17,8 X_18,10,19,9 X_20,12,13,11 X_12,14,5,13 X_4,17,1,18 X_10,20,11,19