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Construction of a stable path 
using split frequencies 
. In step 1, the edge 
is selected according to Equation (13). Then, in step 2, the path is extended on both sides of edge 
according to Eqs. (14–16). Finally, in step 3, both extensions are concatenated forming path 
(Eqs. 17–19)). Edges of the stable path are represented with dashed white lines. Other edges are represented with solid black lines and colored in function of their split frequency.
