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Topological properties of DSF and SW random graphs of 300 nodes and the complete biological networks. Average indegree versus average directed path length for DSF and SW graphs of 300 nodes and biological networks. Biological networks are the complete E. coli (both networks described by [18] and [20]) and S. cerevisiae network [21]. SW: Small world (Watts-Strogatz, [12]), DSF: Directed scale free (Bollobá, [22]).
