Data:L10a137/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_4,17,1,18 X_12,20,5,19 X_20,12,13,11 X_10,14,11,13