Minimal Defining Sets of the 2-(10,5,4) Designs D#1 | D#2 | D#3 | D#4 | D#5 | D#6 | D#7 | D#8 | D#9 | D#10 D#11 | D#12 | D#13 | D#14 | D#15 | D#16 | D#17 | D#18 | D#19 | D#20 D#21