KRISTOFIDES Page 44
0 - (0), (1)
0 -  
0 -   ()
8 -  
A B C D E F G H 
A -> B F H 
B -> A C F 
C -> B D E 
D -> C E G 
E -> C D F 
F -> A B E G H 
G -> D F 
H -> A F
